Environment & Energy
Related: About this forumCarbon Dioxide Could Reach Levels Unseen in 50 Million Years
Carbon Dioxide Could Reach Levels Unseen in 50 Million Years
By Brian Kahn, Climate Central | April 4, 2017 02:29pm ET
No, the headline is not a typo. Current carbon dioxide levels are unprecedented in human history and are on track to climb to even more ominous heights in just a few decades.
If carbon emissions continue on their current trajectory, new findings show that by mid-century, the atmosphere could reach a state unseen in 50 million years. Back then, temperatures were up to 18 degrees Fahrenheit (10 degrees Celsius) warmer, ice was almost nowhere to be seen and oceans were dramatically higher than they are now.
The implications of the research, published on Tuesday in Nature Communications, are some of the starkest reminders yet that humanity faces a major choice to curtail carbon pollution or risk pushing the climate outside the bounds that have allowed civilization to thrive.
Atmospheric levels of carbon dioxide have varied for millennia, fluctuating largely on natural cycles. Humans have added dramatically more carbon dioxide to the atmosphere since the Industrial Revolution, though, raising carbon dioxide from 280 parts per million to nearly 410 parts per million. That has turned the thermostat up about 1.8 degrees Fahrenheit (1 degrees Celsius) and caused a host of other impacts.
More:
http://www.livescience.com/58539-carbon-dioxide-levels-unprecedented-in-human-history.html?utm_source=notification
yallerdawg
(16,104 posts)the storms and tornadoes have become so deadly and devastating our independent school systems and private schools across the state are canceling classes both for yesterday's (Monday's) forecast storms and now tomorrow's (Wednesday's) forecast of storms.
These carbon dioxide levels trap more and more energy into our atmosphere - and the storms are getting stronger and more deadly.
And we are seeing government take actions we have never seen before - regardless of political rhetoric.
Turbineguy
(37,337 posts)between climate change and the republican party who will kill us first. The republicans are in with a good chance of winning.
pscot
(21,024 posts)We're going with expedience and to the Devil with the consequences.