Climate

As big food feels threat of climate change, companies speak up
A warming climate is likely to disrupt global food production, which has Big Food companies worried. Some, like Mars, are becoming increasingly vocal advocates for action on greenhouse gas emissions.
Big data predicts centuries of harm if climate warming goes unchecked
How can climate scientists be so sure about what will happen decades and centuries from now? About 30 teams using supercomputers to churn through mountains of data see patterns aligning.
147 world leaders gather in Paris for U.N. climate conference
During his opening speech, President Obama said that "no nation -- large or small, wealthy or poor -- is immune" to the ills of climate change.
Kyoto treaty fizzled, but climate talkers insist Paris is different
The 1997 Kyoto treaty set targets for cutting greenhouse gas emissions that many nations didn't meet. This time, stakes are higher and all countries will be asked to set and meet their own limits.
What does climate change have to do with droughts, floods, massive snowstorms and a hurricane that slammed into Mexico with the strongest winds on record?