GENEVA, Switzerland, May 26 (UPI) --The World Meteorological Association (WMO) announced Monday that the average monthly concentration of carbon dioxide (CO2) in the northern hemisphere exceeded 400 parts per million (ppm) in April, the highest monthly average on record.
A press release from the United Nations' weather agency says crossing the "threshold is of symbolic and scientific significance and reinforces evidence that the burning of fossil fuels and other human activities are responsible for the continuing increase in heat-trapping greenhouse gases warming our planet."
According to the WMO's release, CO2 levels have risen more than 40 percent, up from pre-industrial levels of around 278 ppm, since human's began burning fossil fuels. CO2 can remain in the atmosphere for hundreds of years, longer still in the oceans. Because plants absorb more carbon dioxide during summer months when their foliage is more dense and plentiful, CO2 levels fluctuate from season to season and tend to peak in the spring. The northern hemisphere, due to higher levels of human industrial activity than the southern hemisphere, tends to have a more pronounced seasonal cycle.
But even with April's reading representing a seasonal peak, Earth's atmosphere hasn't seen levels as high as 400 ppm for millions of years.
"This should serve as yet another wakeup call about the constantly rising levels of greenhouse gases which are driving climate change. If we are to preserve our planet for future generations, we need urgent action to curb new emissions of these heat trapping gases," WMO Secretary-General Michel Jarraud said in a statement. "Time is running out."
http://www.upi.com/Top_News/World-N...its-400ppm-Time-is-running-out/9151401155899/
As the old saying goes, "Our goose is cooked"
What do I mean by that? In a sentence: The global, post-industrial civilization is at risk of collapse or, at the very least, a semi-permanent degradation.
Climate change is a multi-dimensional problem, and few understand its wider implications. Deforestation, ocean acidification, and an overburdened carbon cycle have all coalesced to produce our current predicament.
As these problems intensify, they'll create positive feedback loops, which only propogate the severity of the problem. If we stay above 400-450ppm for long enough, the problem will no longer be solvable--the climate will simply run amok in a literal sense.
But wait, there's more!
Climate change will have disastrous effects which are wholly unrelated to meteorology. As weather patterns shift, so will the prime agricultural and settlement land. Droughts will cause famines, food prices will soar, commodities will become ever more rare and difficult to extract, rising sea levels will create billions of refugees, subregional wars will begin, and the incipient extinction event we're seeing will continue.
As the Pentagon put it: Climate change is a "threat multiplier."
And to make matters worse, we will have to address climate change as we simultaneously address resource shortages. Dwindling oil, helium, rare earth metal, copper and aluminum reserves. Whereas previous generations only had to confront one existential crisis at a time (nuclear proliferation, interstate war, etc.), we will have to face dozens.
Oh, I almost forgot. Most governments are attempting to stifle change--They're all aware of the following simple formula: Climate change + peak resources = Civil unrest. Hell, the Pentagon has published dozens of papers on how to prepare for the societal effects of cataclysmic environmental events!
And what's their solution? A militarized police, tighter legal restraints, and mass surveillance. So even if we wanted to foment change, let alone revolution, it would be nigh impossible.
We're screwed.