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Climate Change

Glenn Hamer, Jay Timmons: EPA threatens Arizona manufacturers’ competitiveness

Glenn Hamer, Jay Timmons: EPA threatens Arizona manufacturers’ competitiveness

The U.S. energy advantage is under attack. The shale-gas revolution has spurred billions in new investments and resurrected industries that had left the country.

March 24, 2014 12:00 am Photos

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Drilling for clues to our ancestors' extinction

Drilling for clues to our ancestors' extinction

A University of Arizona researcher is heading a team that wants to learn how climate change affected the evolution of humanlike species.

November 09, 2013 12:00 am Photos

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Environmental group sues to get UA records

A Washington, D.C.-based advocacy group has sued the University of Arizona demanding the release of a cache of documents — including two professors’ emails — related to climate change and global warming.

October 05, 2013 12:00 amLoading…
A dubious achievement for humanity

A dubious achievement for humanity

Earlier this year, scientists at the NOAA Mauna Loa Observatory in Hawaii announced a major threshold in the Earth system had been crossed: the concentration of the greenhouse gas carbon dioxide in Earth’s atmosphere has now passed a level not seen in the last 3 million years.

September 29, 2013 12:00 am Photos

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Oceans absorbing more global heat, UA researcher says

Much of the heat that was supposed to fire up the globe’s air in the past 15 years — but didn’t — has gone into the ocean, a University of Arizona oceanographer said Friday.

September 28, 2013 12:00 amLoading…

Warming might defeat species evolution, University of Arizona professor says

Vertebrates would have to evolve 10,000 times faster than they ever have to keep up with the pace of change predicted for their climatic niches in the next century, says a University of Arizona researcher.

July 28, 2013 12:00 amLoading…
Destructive Southwest wildfires bear 'really clear' sign of warming

Destructive Southwest wildfires bear 'really clear' sign of warming

Mounting evidence links our region's increase in destructive wildfires to climate change, researchers say.

July 07, 2013 12:00 amLoading…

'Inhospitable' Earth? Compared to the past, hardly

You just can't out-gloom an environmentalist. The Atlantic invited some luminaries to answer the question "How and when will the world end?" Some contributions were funny. Others simply plausible - a volcanic eruption from underneath Yellowstone National Park is frightfully overdue.

July 06, 2013 12:00 amLoading…

Obama's war against coal is economic suicide

The economy stagnates. Syria burns. Scandals lap at his feet. China and Russia mock him, even as a "29-year-old hacker" revealed his nation's spy secrets to the world. How does President Obama respond? With a grandiloquent speech on climate change.

July 05, 2013 12:00 amLoading…

President's plan on climate is OK, but we need more

The following editorial appeared Tuesday in The Baltimore Sun:

June 28, 2013 12:00 amLoading…

Climate change: Let's do the doable then think bigger

The following editorial appeared in Monday's Washington Post:

June 20, 2013 12:00 amLoading…
At nature's mercy

At nature's mercy

Harvest manager Rachel Nisch goes over details on the harvest board, a budget for plants to harvest and orders to fill, with co-owner C.J. Marks at Sleeping Frog Farms near Benson.

June 02, 2013 12:00 amLoading…
At nature's mercy

At nature's mercy

Intern Ben Shonkwiler plants peppers at Sleeping Frog Farms in front of one of six hoop houses installed this year to mitigate hard winter freezes. The 75-acre Sleeping Frog Farms produces fruits and vegetables for Tucson restaurants, a Community Supported Agriculture program and farmers markets.

June 02, 2013 12:00 amLoading…
At nature's mercy

At nature's mercy

Co-owner C.J. Marks tears up spring seasonal plants to make way for arugula at Sleeping Frog Farms in the San Pedro River Valley. The farm, about 30 minutes north of Benson, was hit by frost in 2011 and 2013 and lost much of its winter produce.

June 02, 2013 12:00 amLoading…
At nature's mercy

At nature's mercy

Some farmers say extreme weather events seem to be more frequent in Southern Arizona, forcing them to adapt.

June 02, 2013 12:00 am Photos

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Our weird weather may be linked to rapid melting of Arctic sea ice

Our weird weather may be linked to rapid melting of Arctic sea ice

In February 2011, unusually cold, freezing weather settled in across Southern Arizona for days. At one area store, flowers were draped in ice from some sort of water line or sprinkler problem.

May 26, 2013 12:00 amLoading…
Our weird weather may be linked to rapid melting of Arctic sea ice

Our weird weather may be linked to rapid melting of Arctic sea ice

Unusually cold weather in February 2011 caused sprinker pipes to freeze and burst at the Urban League's Project Yes Angel Family Center.

May 26, 2013 12:00 amLoading…
Our weird weather may be linked to rapid melting of Arctic sea ice

Our weird weather may be linked to rapid melting of Arctic sea ice

It's more than 3,600 miles from Tucson to the Arctic Circle, but researchers are starting to link some of Tucson's and the country's extreme cold and warm spells over the past few winters to the loss of Arctic sea ice that was caused by a warming climate.

May 26, 2013 12:00 am Photos

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Even if alone, Obama must address climate change

President Obama should spend his remaining years in office making the United States part of the solution to climate change, not part of the problem. If Congress sticks to its policy of obstruction and willful ignorance, Obama should use his executive powers to the fullest extent. We are out …

May 25, 2013 12:00 amLoading…

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