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Friday, Nov 13, 2009 10:01 PM UTC2009-11-13T22:01:00Zl, M j, Y g:i A T

The future of corn on a hot planet

Crop scientists have been pushing up corn yields for decades. But the newer strains just can't stand the heat

A troubling fact about corn: In the United States from 1940-1960, after the introduction of hybrid corn and in the wake of the disastrous Dust Bowl years of 1934 and 1936, corn yields and corn heat tolerance both grew. But since 1960, while yields have continued to grow as new hybrid and genetically modified varieties have been introduced, along with other agricultural innovations, heat tolerance has actually fallen.

Why is this significant? Because after a certain temperature, usually around 86 degrees Fahrenheit, corn yields drop dramatically. And even the most conservative mainstream climate scientist predictions about the effect of global warming include temperature rises that would hammer the corn-growing heartland of the United States.

These insights come from a fascinating new paper, “The Evolution of Heat Tolerance of Corn: Implications for Climate Change” by North Carolina State University’s Michael J. Roberts, a professor of Agricultural and Resource Economics, and Wolfram Schlenker, an economist at Columbia University. The researchers take advantage of a 100 years of incredibly detailed information on corn yields and temperature records in Indiana, the third-largest corn-growing state in the U.S.

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Andrew Leonard

Andrew Leonard is a staff writer at Salon. On Twitter, @koxinga21.  More Andrew Leonard

Tuesday, Feb 7, 2012 4:29 PM UTC2012-02-07T16:29:00Zl, M j, Y g:i A T

Climate change denial’s new offensive

Global warming is wreaking devastation, but Big Oil won't give up profits without a planet-destroying fight

A crew member from the Nevada Department of Forestry works to control the Washoe Drive fire in Washoe City, Nev. on January 19, 2012

A crew member from the Nevada Department of Forestry works to control the Washoe Drive fire in Washoe City, Nev. on January 19, 2012  (Credit: Reuters/James Glover II)

This originally appeared on TomDispatch.

If we could see the world with a particularly illuminating set of spectacles, one of its most prominent features at the moment would be a giant carbon bubble, whose bursting someday will make the housing bubble of 2007 look like a lark. As yet — as we shall see — it’s unfortunately largely invisible to us.

In compensation, though, we have some truly beautiful images made possible by new technology. Last month, for instance, NASA updated the most iconic photograph in our civilization’s gallery: “Blue Marble,” originally taken from Apollo 17 in 1972. The spectacular new high-def image shows a picture of the Americas on January 4th, a good day for snapping photos because there weren’t many clouds.

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Bill McKibben is the Schumann Distinguished Scholar at Middlebury College, and founder of the global climate campaign 350.org. His latest book is "Eaarth: Making a Life on a Tough New Planet."More Bill McKibben

Wednesday, Feb 1, 2012 1:43 PM UTC2012-02-01T13:43:00Zl, M j, Y g:i A T

Can saving the Amazon save the planet?

A global carbon market aims to curb emissions and slow climate change by protecting rainforests

In this Oct. 12, 2005 photo, a drought affects the water levels of Anama Lake along the Amazon River, 168 kilometers from Manaus, Brazil

In this Oct. 12, 2005 photo, a drought affects the water levels of Anama Lake along the Amazon River, 168 kilometers from Manaus, Brazil  (Credit: AP Photo/Luiz Vasconcelos, Interfoto, File)

This article originally appeared on GlobalPost.

LIMA, Peru — International negotiators are closing in on a new solution for combating climate change — and saving the world’s remaining forests.

Global Post

Some 20 percent of all greenhouse-gas emissions now come from deforestation, especially in the lush, green band of tropical rainforest that circles the earth.

That is more than from global transport.

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  More Simeon Tegel

Thursday, Jan 26, 2012 4:00 PM UTC2012-01-26T16:00:00Zl, M j, Y g:i A T

Big government, our one shot against crazy storms

In our age of devastating droughts, wildfires and hurricanes, the federal government is more important than ever

Flames engulf a road near Bastrop State Park as a wildfire burns out of control near Bastrop, Texas September 5, 2011.

Flames engulf a road near Bastrop State Park as a wildfire burns out of control near Bastrop, Texas September 5, 2011.  (Credit: Mike Stone / Reuters)

This originally appeared on TomDispatch.

Look back on 2011 and you’ll notice a destructive trail of extreme weather slashing through the year. In Texas, it was the driest year ever recorded. An epic drought there killed half a billion trees, touched off wildfires that burned four million acres, and destroyed or damaged thousands of homes and buildings. The costs to agriculture, particularly the cotton and cattle businesses, are estimated at $5.2 billion — and keep in mind that, in a winter breaking all sorts of records for warmth, the Texas drought is not yet over.

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Christian Parenti is the author of "Lockdown America: Police and Prisons in the Age of Crisis."  More Christian Parenti

Wednesday, Jan 18, 2012 7:45 PM UTC2012-01-18T19:45:00Zl, M j, Y g:i A T

The real beneficiaries of energy subsidies

Don't buy the GOP's claims. Oil companies, not green alternatives, are making a killing from the government

Listen to the typical conservative rhetoric about energy being thrown around on talk radio or in Republican presidential debates, and you’re likely to hear that our government primarily uses its regulatory and financial power to create a destructive green energy boondoggle — one that enriches a few politically connected Solyndra executives, appeases a bunch of wild-eyed tree huggers, but hides the fact that renewables supposedly can’t stand on their own in the private sector.

In the face of catastrophic climate change and dwindling fossil fuel resources, this cartoonish narrative has gained traction because it invokes the moment’s most powerful political metonyms, from implicit allegations of crony capitalism to hippie-themed epithets about environmentalists to “free market” fundamentalism. The underlying idea — which will only be more amplified in the wake of the Obama administration’s pipeline decision Wednesday — is that fossil fuels are being persecuted by the American government.

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David Sirota

David Sirota is a best-selling author of the new book "Back to Our Future: How the 1980s Explain the World We Live In Now." He hosts the morning show on AM760 in Colorado. E-mail him at ds@davidsirota.com, follow him on Twitter @davidsirota or visit his website at www.davidsirota.com.  More David Sirota

Friday, Dec 16, 2011 1:00 AM UTC2011-12-16T01:00:00Zl, M j, Y g:i A T

What our smog has wrought

A brown pollution cloud is making cyclones more intense. We need to stop the partisanship and fix the problem

Chinese women cycle through smog and pollution over Beijing's Tiananmen Square

Chinese women cycle through smog and pollution over Beijing's Tiananmen Square  (Credit: AP)

Have you heard about the great brown cloud? No, it’s not a new nickname for Donald Trump (his cloud is more an intergalactic nimbus of Aqua Velva and Tang), or the ominous menace in a new Stephen King novel. It’s almost as nasty, though.

The Atmospheric Brown Cloud, formerly known as the Asian Brown Cloud, is a mass of air pollution hovering over northern India along the southern Himalayas and down across Bangladesh and the Bay of Bengal. The cloud began growing shortly after World War II, a smoggy mass of soot and sulfates from diesel emissions, wood fires and other burning stuff that’s almost two miles thick.

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Michael Winship is senior writing fellow at Demos and a senior writer of the new series, Moyers & Company, airing on public television.   More Michael Winship

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