Species on land and in water are moving and changing, and scientists aren't sure how to help.
After declining for five years, US emissions are up largely because utilities have been using more coal.
That's what Hank Paulson said at the Clinton Global Initiative, as he calls again for a carbon tax.
Highlights include EU's new commitments, an end to deforestation, and corporations running completely on renewable energy.
Rockefeller joins 180 institutions in divesting from fossil investments and transferring that money to low carbon alternatives.
At a final count of over 400,000 people, this event was worth going to.
340 global investment managers call for a stable, reliable, economically meaningful price on carbon to redirect investments on the scale needed to address climate change.
An astounding $90 trillion will likely be invested over the next 15 years to begin reversing climate change - an economic engine.
Almost all US manufacturers of HFCs and products that contain them have agreed to phase them out.
Cato Institute says World Meteorological Organization warnings on climate change are a cause for celebration.