The final agreement creates rules for how countries will work together to combat climate change. But frustration remains that the world’s progress doesn’t match the urgency of the problem.
The Trump administration can withdraw from the Paris climate agreement next year, but it still takes another year for the process to be complete. Which brings the whole matter to Election Day in 2020.
Countries are setting the rules for the Paris agreement and struggling over how to do more to stop warming in its tracks.
The Arctic Ocean has lost 95 percent of its oldest, thickest ice. If this thinning trend continues, scientists fear an added boost to global warming.
The figures suggested there is no clear end in sight to the growth of humanity's contribution to climate change.
One Texas A&M scientist called his comments “idiotic,” saying, “How can one possibly respond to this?”
A new "emissions gap" report says that we are even farther than we thought from where we need to be.
Scientists are more certain than ever that climate change is already impacting the United States, and that it is going to be very expensive.
A permafrost coastline is receding dramatically along Alaska's North Slope region. It could be an indicator of far more massive land losses across the Arctic.
A 4-mile-long break was recently caught on video at one of Greenland's biggest glaciers.