Three days of extreme heat in Chicago in 1995 caused over 700 deaths. New York University professor Eric Klinenberg talks about what we've learned from that catastrophe.

Yvo deBoer, co-writer of the original Kyoto Protocol, talks about the Rio+20 Earth Summit, how climate change is being perceived in the global community, and names a surprising country that's making the best sustainable efforts right now.

A group of teenagers is taking the U.S. government to court for not responding to climate change. Can individuals really use the government?

The IPCC is about to release its latest findings regarding extreme weather trends and climate change. The predictions can help insurers figure out what to cover, and for how much.

Bangladesh, once a poster child for the food crisis, has made dramatic progress. But will our changing climate sweep away the gains?

A document leak from the anti-climate crusading Heartland Institute shows many mainstream corporate donors.

With a low bar set, there is hope that attendees of the summit can at least agree to make a plan to stop climate change

Developing and island states are on board for an agreement, but the U.S. and other countries are still undecided.

Delegates are expected to stay up late into the night at the UN climate summit, and rumors are swirling that baby steps are being taken towards a legally-binding climate change deal by 2015.

Transit agencies shuffle their budgets to get ready for more extreme weather.