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The University of Arizona mascot is the Wild Cat, or bobcat, so it is only fitting that the university is involved in research and conservation initiatives for the benefit of wild cats all over the world. “Our mission is to conserve and research all 36 species of wild cats worldwide,” Lisa Haynes, of the University of Arizona Wild Cat Research & Conservation, told me at the recent BioBlitz in Saguaro National Park....

The north end of the Highland Parking Garage at the University of Arizona may look like a plot of vacant land right now, but plans for the facility call for greenery, both edible and not.

“It’s about 16,000 square foot, in terms of the plot. Within that piece of land, you’re looking at a number of 20-by-3-foot sunken beds filled with compost and soil, ready to be planted,” says Chester “Chet” Phillips, a...

DURBAN, South Africa - With heat-trapping carbon at record levels in the atmosphere, U.N. climate negotiations opened Monday with pressure building to salvage the only treaty limiting greenhouse gas emissions.

The U.S., Europe and the developing countries laid out diverging positions at the outset, signaling tough talks ahead even as South African President Jacob Zuma called for national interests to be laid aside "for a common good and benefit of all humanity."

As if...

Guy Raz speaks with Todd Stern, the U.S. special envoy for climate change. He talks about what will — and won't — be accomplished at the U.N. climate talks in Durban, South Africa. Stern predicts no binding agreement to reduce carbon emissions will come out of these talks. He says that's because developing countries such as China and India are not prepared to agree to reductions that would treat developing and developed nations equally. Stern points to the previous round...