Still, it's not too late to make a big difference in the health of Earth and people who live here.
It's already too late to meet the warming limit of 3.6 degrees Fahrenheit (2 degrees Celsius) set…
Key steps must be taken by 2030.
The U.S. can cut its carbon output to zero by the middle of the 21st century, according to a sweeping new Princeton University study. In such a "net-zero" scenario,…