The reported NOAA ESRL global CO2 for March, 2017 hit a new record high of 406.05 ppm, which was 2.47 ppm higher than March, 2016.
Source: NOAA ESRL https://esrl.noaa.gov/gmd/ccgg/trends/global.html
This new milestone continues the ongoing increases of atmospheric CO2 that has been reported since 1980.
Source: NOAA ESRL and Apocalypse4Real
The monthly CO2 increase of 2.47 ppm over March, 2016 was the record 27th consecutive month of increases of at least 2 ppm over the prior year. This reflects the acceleration of atmospheric CO2 increases through the last three years, when human emissions supposedly leveled off. The increase of 2.47 ppm is lower than the blistering 3+ ppm monthly increases every month of 2016.
The 5 year change was 12.52 ppm over March, 2012, which is the record 13th month of five year increases over 12 ppm, a level never reached before March, 2016.
The 10 year global CO2 change was 22.27 ppm higher than March 2006, an unprecedented 9th month above a 22 ppm increase over the same month a decade earlier.
Source: NOAA ESRL and Apocalypse4Real
It is this accelerating achievement of global CO2 milestones that caught my attention this month. If we incorporate Mauna Loa data, beginning in March, 1958, with the global record commencing in January, 1980, the increasing pace of toppling milestones becomes glaringly apparent.
The 5 ppm milestones fall faster, beginning in the 1980's. With the most recent 5 ppm increase occurring in only 22 months, between March, 2015 and January, 2017. Even if a slowdown in the increase occurs, it is not unreasonable to assume that by March, 2019, we will globally surge through 410 ppm.
Source: NOAA ESRL, Apocalypse4Real
If one steps back to the increases by 10 ppm, some of the variability smooths out, but the trend of decreasing time frames to each milestone is still a sobering slide. Given the sustained rates of increase, March, 2019 is presumed to be the month we reach 410 ppm globally, and we will have reached that milestone in only 48 months.
Source: NOAA ESRL, Apocalypse4Real
Here is the historical and estimated data graphed above:
SOURCE: NOAA ESRL, Apocalypse4Real
With this historical data in mind, what does this portend for future increases?
If we hypothesize that the acceleration from 390 to 400 ppm was an anomaly, and that 60 months better represents the future rate of 10 ppm CO2 increases, we reach 410 ppm by 2020, 470 ppm by 2050 and double CO2 from the pre-industrial levels, reaching 570 ppm by 2100.
However, if the lower trend rate is assumed, adding another 10 ppm globally every 48 months, we reach 490 ppm by about 2050, and 610 ppm around 2100.
if we do not control global CO2, and a tipping point is reached that leads to a 36 month 10 ppm increase in CO2 (which was the rate of global CO2 increase during 2016), then the results are deeply troubling. CO2 potentially reaches 520 ppm by 2050, and 690 ppm by about 2100.
Here are the 60 month and 48 month and a 36 month "worst case" trended 10 ppm milestone increases:
Source: Apocalypse4Real
I am hopeful that steps taken by the international community will slow these trajectories during the next 10 years.
Of course this will not include efforts by the current US administration, who have earned the notorious stigma of making the US a climate pariah state.
Finally, the 406.05 ppm of March, 2017 is 19.62% higher that March, 1980. We are edging closer to a 20% increase in atmospheric CO2 in less than 40 years. The impacts will be felt far into the future.
Friday, June 30, 2017
Sunday, May 21, 2017
Global CO2 Record High for February, 2017 and 2016 Annual Growth
On May 5th, 2017, NOAA/ESRL released its February, 2017 global carbon dioxide report. It placed the global mean at 405.75 ppm or 2.74 ppm above February, 2016.
The Annual Growth Increase Trends
NOAA ESRL calculates the annual CO2 growth trend by averaging the December and January readings to mark the average at the end and beginning of a year. This method is helpful, yet it over and under calculates the growth rate versus actual annual mean for each entire year. This results in significant differences between this approach and the actual annual mean for any year compared to prior years.
This graphic illustrates that difference and how significant it is for 2016. In the following graph, the blue line represents the annual growth rate as depicted on the NOAA ESRL Global Monthly Mean Carbon Dioxide page: https://www.esrl.noaa.gov/gmd/ccgg/trends/global.html
The red line represents the actual annual growth means for each full year.
While the current NOAA ESRL methodology results in an annual growth of 2.90 ppm over 2015, the actual annual mean data comparing all of 2016 to 2015, results in a whopping 3.44 ppm increase. Both numbers will change as more samples are added and validated, but it is likely the actual annual mean 2016 CO2 growth rate will remain well above a 3 ppm increase for the first time in modern history.
The Global CO2 Monthly Mean Trend
This continues the atmospheric CO2 increase trend observed since the first readings in March, 1958 at Mauna Loa, (MLO) Hawaii. Using the March, 1958 MLO monthly mean as a global proxy, CO2 has increased 90.04 ppm or 28.53%.
The NOAA ERSL global monthly mean data is available beginning in January. 1980. The global mean CO2 has increased by 66.60 ppm since February, 1980 or 19.64%.
What is less apparent in this depiction is the CO2 increase acceleration since 1958. If we consider the MLO and global mean CO2 record combined, we are achieving 10 ppm "milestone" increases with worrisome acceleration.
The one, five and 10 year Global CO2 Monthly Mean Increase
If one considers the annual, five and ten year global monthly mean change in CO2, those trends are clear. The monthly mean of 405.75 ppm for February, 2017 was 2.74 ppm higher than 2016, 12.75 ppm higher than 2012, and 22.43 ppm higher than February, 2007. The following graph depicts these trends.
Time Required to Reach Five and 10 ppm "Milestone" is Shortening
However, if one considers how quickly we achieve milestones of either 5 or 10 ppm increases in global CO2, the trends towards shorter times to reach each is apparent and concerning.
Reaching 10 ppm Increase "Milestones"
For example, MLO passed 320 ppm in May, 1960. It took 12 years or 144 months to reach 330 ppm in May, 1972. Globally, we reached 340 ppm eight years later, in May, 1980. It took only seven years to reach 350 ppm, in 1987.
Moreover, from 1995 to 2017, we have observed an increase of 10 ppm about every 60 months or five years. However this rate has accelerated through time. Currently we are on track to conservatively increase global CO2 from 400 to 410 ppm in 48 months - four years or less. More on potential future increases later.
Reaching 5 ppm Increase "Milestones"
If we consider how quickly we reach 5 ppm increases, the trend is even more apparent. While MLO went from 315 to 320 ppm in a mere 26 months from 1958 to 1960, it took 84 months to increase to 325 ppm, from May 1960 to May 1967. That shortened to 60 months to go from 325 to 330 ppm, by May 1972. That time frame decreased again to 47 months to increase from 340 to 345 ppm, by April 1984.
What is of real concern is that since 1995, every increase of 5 ppm has taken less that 36 months - three years. The last increase in 5 ppm, from 400 to 405 ppm, took only 22 months. That is the shortest time for any global monthly mean 5 ppm increase.
With this acceleration, even with allowance for the slowdown in CO2 increases after an El Nino effect has ended, one can conservatively estimate that we will hit 410 ppm by March, 2019, only 48 months since blowing through 400 ppm. Some trace gas monitoring stations have already measured readings well above 410 ppm in the Arctic, and MLO has had daily readings above 410 ppm this year for the first time.
Source: Apocalypse4Real, NOAA ESRL
What Have We Gotten Ourselves Into?
After looking at how we continue to experience accelerating global CO2 monthly means, and how we are shortening the time frames to achieve each one, here is a simple set of hypothetical projections based upon various rates of hitting future 10 ppm milestones.
The first (left table) assumes a return to a lower rate of increase, a 60 month, or five year time frame for each 10 ppm "milestone".
The second (middle table) captures the current rate we seem to be moving towards, a 10 ppm increase every 48 months, or four years.
However, the change of 2016 from 2015 was a rate that would see us meet a 10 ppm increase every 36 months or so, about every three years. The right table depicts that rate of change.
These are like making a choice between poisons for our global community, slow or fast acting.
Source: Apocalypse4Real
If we revert to a 60 month increase for each 10 ppm, we double CO2 to 560 ppm from the pre-industrial concentration of 280 ppm by the end of the century, about the year 2095.
If we move to a 48 month increase rate, we hit that doubling, 560 ppm, by 2079.
If we continue to experience CO2 increases from human sources and natural feed backs, and drop to a 36 month time frame for each 10 ppm increase, we hit 560 ppm by 2063.
This is what is at stake for the future generations, a warmer and more at risk world. Perhaps we should not call these "milestones" but "millstones."
The real problem? This is only CO2. The real picture for all trace gases has us way beyond the Paris Agreement today. That is for a future post.
The Annual Growth Increase Trends
NOAA ESRL calculates the annual CO2 growth trend by averaging the December and January readings to mark the average at the end and beginning of a year. This method is helpful, yet it over and under calculates the growth rate versus actual annual mean for each entire year. This results in significant differences between this approach and the actual annual mean for any year compared to prior years.
This graphic illustrates that difference and how significant it is for 2016. In the following graph, the blue line represents the annual growth rate as depicted on the NOAA ESRL Global Monthly Mean Carbon Dioxide page: https://www.esrl.noaa.gov/gmd/ccgg/trends/global.html
The red line represents the actual annual growth means for each full year.
While the current NOAA ESRL methodology results in an annual growth of 2.90 ppm over 2015, the actual annual mean data comparing all of 2016 to 2015, results in a whopping 3.44 ppm increase. Both numbers will change as more samples are added and validated, but it is likely the actual annual mean 2016 CO2 growth rate will remain well above a 3 ppm increase for the first time in modern history.
The Global CO2 Monthly Mean Trend
This continues the atmospheric CO2 increase trend observed since the first readings in March, 1958 at Mauna Loa, (MLO) Hawaii. Using the March, 1958 MLO monthly mean as a global proxy, CO2 has increased 90.04 ppm or 28.53%.
The NOAA ERSL global monthly mean data is available beginning in January. 1980. The global mean CO2 has increased by 66.60 ppm since February, 1980 or 19.64%.
What is less apparent in this depiction is the CO2 increase acceleration since 1958. If we consider the MLO and global mean CO2 record combined, we are achieving 10 ppm "milestone" increases with worrisome acceleration.
The one, five and 10 year Global CO2 Monthly Mean Increase
If one considers the annual, five and ten year global monthly mean change in CO2, those trends are clear. The monthly mean of 405.75 ppm for February, 2017 was 2.74 ppm higher than 2016, 12.75 ppm higher than 2012, and 22.43 ppm higher than February, 2007. The following graph depicts these trends.
Time Required to Reach Five and 10 ppm "Milestone" is Shortening
However, if one considers how quickly we achieve milestones of either 5 or 10 ppm increases in global CO2, the trends towards shorter times to reach each is apparent and concerning.
Reaching 10 ppm Increase "Milestones"
For example, MLO passed 320 ppm in May, 1960. It took 12 years or 144 months to reach 330 ppm in May, 1972. Globally, we reached 340 ppm eight years later, in May, 1980. It took only seven years to reach 350 ppm, in 1987.
Moreover, from 1995 to 2017, we have observed an increase of 10 ppm about every 60 months or five years. However this rate has accelerated through time. Currently we are on track to conservatively increase global CO2 from 400 to 410 ppm in 48 months - four years or less. More on potential future increases later.
If we consider how quickly we reach 5 ppm increases, the trend is even more apparent. While MLO went from 315 to 320 ppm in a mere 26 months from 1958 to 1960, it took 84 months to increase to 325 ppm, from May 1960 to May 1967. That shortened to 60 months to go from 325 to 330 ppm, by May 1972. That time frame decreased again to 47 months to increase from 340 to 345 ppm, by April 1984.
What is of real concern is that since 1995, every increase of 5 ppm has taken less that 36 months - three years. The last increase in 5 ppm, from 400 to 405 ppm, took only 22 months. That is the shortest time for any global monthly mean 5 ppm increase.
With this acceleration, even with allowance for the slowdown in CO2 increases after an El Nino effect has ended, one can conservatively estimate that we will hit 410 ppm by March, 2019, only 48 months since blowing through 400 ppm. Some trace gas monitoring stations have already measured readings well above 410 ppm in the Arctic, and MLO has had daily readings above 410 ppm this year for the first time.
Here is the full table from NOAA ESRL Mean Monthly MLO and Global CO2 "milestones."
What Have We Gotten Ourselves Into?
After looking at how we continue to experience accelerating global CO2 monthly means, and how we are shortening the time frames to achieve each one, here is a simple set of hypothetical projections based upon various rates of hitting future 10 ppm milestones.
The first (left table) assumes a return to a lower rate of increase, a 60 month, or five year time frame for each 10 ppm "milestone".
The second (middle table) captures the current rate we seem to be moving towards, a 10 ppm increase every 48 months, or four years.
However, the change of 2016 from 2015 was a rate that would see us meet a 10 ppm increase every 36 months or so, about every three years. The right table depicts that rate of change.
These are like making a choice between poisons for our global community, slow or fast acting.
Source: Apocalypse4Real
If we revert to a 60 month increase for each 10 ppm, we double CO2 to 560 ppm from the pre-industrial concentration of 280 ppm by the end of the century, about the year 2095.
If we move to a 48 month increase rate, we hit that doubling, 560 ppm, by 2079.
If we continue to experience CO2 increases from human sources and natural feed backs, and drop to a 36 month time frame for each 10 ppm increase, we hit 560 ppm by 2063.
This is what is at stake for the future generations, a warmer and more at risk world. Perhaps we should not call these "milestones" but "millstones."
The real problem? This is only CO2. The real picture for all trace gases has us way beyond the Paris Agreement today. That is for a future post.
Tuesday, March 28, 2017
The Writing on the Wall - A Response to the White Hourse Energy Executive Order
Today's "Presidential Executive Order on Promoting Energy Independence and Economic Growth" issued by the White House, is a fascinating and troubling read. While presumably rolling back policies of the previous administration, it also guts the US capability to make progress in meeting its commitments to the Paris Climate Agreement or responding at a policy level to climate change.
Even if the U.S. does not officially withdraw from the Paris Climate Accord, it is clear from this Executive Order that there is no intention in seriously meeting our commitments in emissions reductions.
For the Executive Order, see: https://www.whitehouse.gov/the-press-office/2017/03/28/presidential-executive-order-promoting-energy-independence-and-economi-1
Three actions are most troubling.
First is the removal of the final guidance to Federal entities and bodies in considering climate change impacts in their activities. See Section 3, c.
The 34 page document being revoked is the ""Final Guidance for Federal Departments and Agencies on Consideration of Greenhouse Gas Emissions and the Effects of Climate Change in National Environmental Policy Act Reviews," and found at https://www.energy.gov/sites/prod/files/2016/08/f33/nepa_final_ghg_guidance.pdf
The second concern is the obliteration of rules relating to Oil and Natural Gas production including waste disposal as detailed in Section 7, Here it is in its entirety:
Sec. 7. Review of Regulations Related to United States Oil and Gas Development. (a) The Administrator shall review the final rule entitled "Oil and Natural Gas Sector: Emission Standards for New, Reconstructed, and Modified Sources," 81 Fed. Reg. 35824 (June 3, 2016), and any rules and guidance issued pursuant to it, for consistency with the policy set forth in section 1 of this order and, if appropriate, shall, as soon as practicable, suspend, revise, or rescind the guidance, or publish for notice and comment proposed rules suspending, revising, or rescinding those rules.
(b) The Secretary of the Interior shall review the following final rules, and any rules and guidance issued pursuant to them, for consistency with the policy set forth in section 1 of this order and, if appropriate, shall, as soon as practicable, suspend, revise, or rescind the guidance, or publish for notice and comment proposed rules suspending, revising, or rescinding those rules:
(i) The final rule entitled "Oil and Gas; Hydraulic Fracturing on Federal and Indian Lands," 80 Fed. Reg. 16128 (March 26, 2015);
(ii) The final rule entitled "General Provisions and Non-Federal Oil and Gas Rights," 81 Fed. Reg. 77972 (November 4, 2016);
(iii) The final rule entitled "Management of Non Federal Oil and Gas Rights," 81 Fed. Reg. 79948 (November 14, 2016); and
(iv) The final rule entitled "Waste Prevention, Production Subject to Royalties, and Resource Conservation," 81 Fed. Reg. 83008 (November 18, 2016).
The third, and greatest concern is the utter disregard for climate change impacts on U.S. national security.
In the Executive Order, it states, in Section. 3. "Rescission of Certain Energy and Climate-Related Presidential and Regulatory Actions."
(a) The following Presidential actions are hereby revoked:
(iv) The Presidential Memorandum of September 21, 2016 (Climate Change and National Security)." This previous memorandum can be found at: https://obamawhitehouse.archives.gov/the-press-office/2016/09/21/presidential-memorandum-climate-change-and-national-security
I find it ironic that a new administration that presumably has made national security a priority would revoke a previous Presidential Action that helped to specifically accomplish that goal.
The previous action, now revoked, states that part of its policy implementation purpose was to partially implement, "the 2015 National Security Strategy, which identified climate change as an urgent and growing threat to our national security, contributing to increased natural disasters, refugee flows, and conflicts over basic resources like food and water. It added that increased sea levels and storm surges threaten coastal regions, infrastructure, and property, which in turn threatens the global economy, and compounds the growing costs of preparing and restoring infrastructure"
The body created to coordinate US national security efforts in response to climate change was the Climate and National Security Working Group. Its key functions were
(i) identify the U.S. national security priorities that are within the scope of the Working Group's mission;
(ii) develop recommendations for requirements for climate and social science data and intelligence analyses, as appropriate, that support national security interests;
(iii) catalog climate science data, intelligence analyses, and other products and programs that support or should be considered in the development of national security doctrine, policy, and plans. This catalogue shall include climate and social science data repositories and analytical platforms; climate modeling, simulation, and projection capabilities; and information-sharing tools and resources supporting climate risk analyses and assessments, such as the Climate Data Initiative, the Climate Resilience Toolkit, the Global Change Information System, and the National Climate Assessment;
(iv) identify information and program gaps that limit consideration of climate change-related impacts in developing national security doctrine, policies, and plans. Descriptions of these gaps will be provided to Federal science agencies and the United States Intelligence Community to inform future research requirements and priorities, including collection priorities, on climate data, models, simulations, and projections;
(v) facilitate the production and exchange of climate data and information with relevant stakeholders, including the United States Intelligence Community, and private sector partners, as appropriate;
(vi) produce, as appropriate, and make available science-informed intelligence assessments to agencies having responsibilities in the development of national security doctrine, policies, and plans in order to identify climate change-related impacts and prioritize actions related thereto;
(vii) establish, by consensus, guidance for Working Group members on coordinating, sharing, and exchanging climate science data among the members, and with the National Science and Technology Council (NSTC);
(viii) provide a venue for enhancing the understanding of the links between climate change-related impacts and national security interests and discussing the opportunities for climate mitigation and adaptation activities to address national security issues;
(ix) work to improve the Federal Government's capability and capacity to characterize greenhouse gas sources and sinks accurately at sub-continental scales;
(x) in coordination with the NSTC, recommend research guidelines concerning the Federal Government's ability to detect climate intervention activities;
(xi) develop, by consensus, guidance for Working Group members on building climate resilience in countries vulnerable to climate change-related impacts;
(xii) provide information and Working Group-related progress updates to the Council on Climate Preparedness and Resilience, established by Executive Order 13653, Preparing the United States for the Impacts of Climate Change, on a quarterly basis;
(xiii) take into account defined requirements and current capabilities described in subsection (4)(c)(ii) and (iii) of this memorandum to facilitate the consideration of climate change-related impacts into national security doctrine, policies, and plans. The Working Group shall develop recommended climate data requirements and consider the cost of the production and exchange of this information, and making this information available;
(xiv) have classified and unclassified capabilities, as required and appropriate, to consolidate and make available climate change-related impact information, intelligence analyses, and assessments for access and use by Working Group member agencies;
(xv) identify the most current information on regional, country, and geographic areas most vulnerable to current and projected impacts of climate variability in the near- (current to 10 years), mid- (10 to 30 years), and long- (more than 30 years) term, in order to support assessments of national security implications of climate change, and identify areas most vulnerable to these impacts during these timeframes;
(xvi) develop recommendations for the Secretary of State to help ensure that the work of U.S. embassies, including their planning processes, are better informed by relevant climate change-related analyses; and
(xvii) coordinate on the development of quantitative models, predictive mapping products, and forecasts to anticipate the various pathways through which climate change may affect public health as an issue of national security.
It is items iv, vi, xii, xv and xvi that bring the most concern. The new executive order is seemingly taking a Cromwellian approach to key information that would support the administration's efforts of making "America Great Again," and protect American interests and citizens for the long term future.
We are left being blinded, bound in ignorance, and tossed adrift at the governmental level at a time that climate change is accelerating, destabilizing larger segments of global society, and decimating capabilities crucial to our current and future national security interests.
By this Executive Order, our president is setting us up for - and participating in - the writing on the wall.
"The
Writing On The Wall"
Alter
Bridge: The Last hero
Don't tell us this is normal
Don't tell us there's no change
So selfish and immoral, you're to
blame
'Cause you're the great disrupter
So crass and out of line
Now tell me who will suffer for all
your crimes?
We are running out of time
Out of time
And the writing's on the wall
That the end will begin
Still you do nothing at all
And keep denying the greatest sin
Ignore the truth and follow
Reap all that you sow
Spawn the future sorrow, we will know
Refusing every warning
Deny the rate of change
The ignorance is swarming, what a
shame
And you know that you're to blame
You're to blame
And the writing's on the wall
That the end will begin
Still you do nothing at all
Throwing lies to the wind
And the writing's on the wall
So I say it again
Still you do nothing at all
And keep denying the greatest sin
You're the one to blame
For this rate of change
No tomorrow
When will you see?
And the writing's on the wall
That the end will begin
Still you do nothing at all
Throwing lies to the wind
And the writing's on the wall
So I say it again
Still you do nothing at all
And keep denying the greatest sin
The greatest sin
Deny it again
When will it end?

Source:
Sunday, March 12, 2017
CO2 Above 410 ppm at Some Locations in 2016, Near 420 ppm in 2017
Recently, some media sources are reporting on the approach of Mauna Loa CO2 approaching or passing 410 ppm in 2017.
For example, Digital Journal reported on March 10, "In the next few weeks, carbon dioxide is expected to pass the 410 ppm mark on a daily basis at the Mauna Loa Observatory, something we have never experienced."
Source: http://www.digitaljournal.com/news/environment/carbon-dioxide-rates-close-to-breaching-the-410-ppm-threshold/article/487650#ixzz4b8wHj9YP
While it is true that MLO has not passed 410 ppm in the past, it is helpful to note that this benchmark has already been exceeded elsewhere.
The reality is that 30 monitoring stations exceeded daily readings of 410 ppm by June, 2016. The locations marked with yellow stars below are those who passed that point by that month.
Source: NOAA ESRL Active Data Viewer and Station Data https://www.esrl.noaa.gov/gmd/dv/iadv/
What is more concerning is how many stations have reported preliminary readings above 415 and in one case almost 420 ppm.
For example, Barrow, Alaska has two preliminary readings above 420 ppm, that if not determined to be from a local source, will be a significant jump in CO2 concentration at that location.
Cold Bay, Alaska had numerous readings above 410 ppm through 2016. and may approach 415 ppm this year.
Ny-Alesund Svalbard has readings above 415 ppm in early 2017, which is not the peak of its CO2 cycle.
Further south, Iceland has already recorded preliminary CO2 above 410 ppm in 2017.
Finally, Tiksi, Russia has preliminary readings just shy of 420 ppm, and those will likely go higher later this spring if previous years represent a pattern for its increase in the next few months.
While Mauna Loa is important as the longest running CO2 concentration reporting site, it is not the first to pass 410 ppm. That was done last year in numerous locations. It is just catching up.
For example, Digital Journal reported on March 10, "In the next few weeks, carbon dioxide is expected to pass the 410 ppm mark on a daily basis at the Mauna Loa Observatory, something we have never experienced."
Source: http://www.digitaljournal.com/news/environment/carbon-dioxide-rates-close-to-breaching-the-410-ppm-threshold/article/487650#ixzz4b8wHj9YP
While it is true that MLO has not passed 410 ppm in the past, it is helpful to note that this benchmark has already been exceeded elsewhere.
The reality is that 30 monitoring stations exceeded daily readings of 410 ppm by June, 2016. The locations marked with yellow stars below are those who passed that point by that month.
Source: NOAA ESRL Active Data Viewer and Station Data https://www.esrl.noaa.gov/gmd/dv/iadv/
What is more concerning is how many stations have reported preliminary readings above 415 and in one case almost 420 ppm.
For example, Barrow, Alaska has two preliminary readings above 420 ppm, that if not determined to be from a local source, will be a significant jump in CO2 concentration at that location.
Cold Bay, Alaska had numerous readings above 410 ppm through 2016. and may approach 415 ppm this year.
Ny-Alesund Svalbard has readings above 415 ppm in early 2017, which is not the peak of its CO2 cycle.

Further south, Iceland has already recorded preliminary CO2 above 410 ppm in 2017.
Finally, Tiksi, Russia has preliminary readings just shy of 420 ppm, and those will likely go higher later this spring if previous years represent a pattern for its increase in the next few months.
While Mauna Loa is important as the longest running CO2 concentration reporting site, it is not the first to pass 410 ppm. That was done last year in numerous locations. It is just catching up.
Subscribe to:
Posts (Atom)