Right now CO2 is higher than it has been in over 20 million years. But it has been higher, a lot higher.
The chart below was published in the Worldwatch Institute’s State of the World 2015 and the source of their data was Goddard Institute for Space Studies
What this chart clearly shows is that global warming, so far, is primarily a northern hemisphere phenomenon and mostly above 60 degrees latitude.
Arctic still heating up twice as fast as rest of planet. Annual average temperatures have continued to rise for the region as a whole throughout the recent slowdown in the pace of warming globally, according to a new analysis of conditions above 60 degrees north latitude.
The ocean, especially the arctic ocean, is warming much faster than the atmosphere.
In fact, the loss of reflective sea ice is part of the reason Arctic temperature has risen three times faster than the global average in recent decades. This effect, known as Arctic amplification, has consequences for nearby land ice, too.
But why is the Northern Well for one reason that’s where most of the people are. That’s where most of the CO2 emissions comes from. But… don’t the air mix from north to south?