A new study calculates countries' carbon debts.
The state wants to power 240,000 homes with solar power by 2020.
Warming ocean temperatures are scrambling ecosystems, as species migrate to cooler waters.
A new review illustrates the environmental impacts of the pre-Columbian Mayans.
Scientists say there are more than 3 trillion trees on earth, but we're losing about 10 billion per year.
Making the U.S. look pretty bad in the process.
New data from the tech giant and the University of Maryland reveal previously overlooked deforestation in Southeast Asia and West Africa.
Seriously, polar bears -- stop being jerks.