Tag: global warming

Will Fracking Help Or Hinder the Fight Against Climate Change?

By Keith Kloor | August 29, 2012 12:30 pm

Keith Kloor is a freelance journalist whose stories have appeared in a range of publications, from Science to Smithsonian. Since 2004, he’s been an adjunct professor of journalism at New York University. You can find him on Twitter here.

When it comes to climate change, the bad news pummels you the way Mike Tyson, in his prime, pummeled opponents into submission. The onslaught is so relentless that sometimes I just want to crumple into a heap and yell: Make it stop! The latest beat-down, for example, is news of the record ice shrinkage in the Arctic. That seems to have shaken up a lot of people.

But before everyone sinks into catatonic despair, I want to return to a recent piece of stunningly good news on the climate front. Perhaps you saw the headline several weeks ago: “U.S. carbon emissions drop to 20-year low.”

Alas, there was a catch. The biggest reason for the decline, as the AP reported, “is that cheap and plentiful natural gas has led many power plant operators to switch from dirtier-burning coal.”

If this isn’t the definition of quandary, I don’t know what is. Gas emits much less carbon than coal (probably between 25% and 50% less), which is a net plus on the global warming ledger. And shale gas, in case you hadn’t heard, is entering a golden age; it is abundant and newly retrievable across the world, not just in the United States. It’s the bridge fuel to a clean energy future that liberal think tanks and university researchers were touting just a few years ago. Given the political stalemate on climate change, one energy expert gushed in a recent NYT op-ed: “Shale gas to the rescue.”

But a grassroots backlash to the relatively new technology (hydraulic fracturing) that unlocks shale gas has set in motion powerful forces opposed to this bridge getting built. Leading climate campaigners, citing concerns about industry practices and continued reliance on fossil fuels (even if less carbon intensive), are now a big part of the growing anti-fracking coalition. Mainstream environmentalists have also jumped on that bandwagon.

Thus the battle lines are drawn, with enviros and climate activists digging in their heels against a shale gas revolution that could pay big climate dividends. This is a story in of itself. Now a new twist promises to make it even more interesting. Earlier this week, Michael Bloomberg, the billionaire philanthropist and New York City mayor, gave the Environmental Defense Fund (EDF) a $6 million grant for its work “to minimize the environmental impacts of natural gas operations through hydraulic fracturing.” The grant follows on the heels of a Washington Post op-ed that Bloomberg co-authored with a gas industry executive. In the piece, they champion the environmental and economic benefits of natural gas, while also calling for more stringent fracking rules and better industry practices.

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CATEGORIZED UNDER: Environment, Top Posts

Icy Relations: Extreme-Weather Question Drives Wedge Between Climate Scientists

By Keith Kloor | August 8, 2012 1:33 pm

By Keith Kloor, a freelance journalist whose stories have appeared in a range of publications, from Science to Smithsonian. Since 2004, he’s been an adjunct professor of journalism at New York University. You can find him on Twitter here.

Last year, after Al Gore said in a speech that climate change was responsible for various extreme weather events around the globe, he got spanked by Oxford climate scientist Myles Allen, who wrote a column in the Guardian entitled, “Al Gore is doing a disservice by overplaying the link between climate change and the weather.”

I have to wonder if Allen is now thinking the same thing of NASA climatologist James Hansen. Because, as New York Times reporter John Broder puts it, Hansen, this week, has “roiled” the climate science community “with a new scientific paper explicitly linking high concentrations of carbon dioxide and other heat-trapping gases to recent severe heat waves and drought.”

The controversial paper was published on Monday in the Proceedings of the National Academies of Sciences (PNAS). A day earlier, Hansen previewed the study’s findings in a Washington Post op-ed, in which he made this jaw-dropping assertion:

It is no longer enough to say that global warming will increase the likelihood of extreme weather and to repeat the caveat that no individual weather event can be directly linked to climate change. To the contrary, our analysis shows that, for the extreme hot weather of the recent past, there is virtually no explanation other than climate change.

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CATEGORIZED UNDER: Environment, Top Posts

7 Billion People, 30 Gigatons of CO2, 1 Warming Planet: Population & Climate in the 21st Century

By Robert Socolow | November 18, 2011 11:03 am

wedges
The “stabilization wedge” idea is a modular way of reducing carbon emissions.

The world is now home to 7 billion people, each of whom contributes to the carbon emissions that are slowly cooking the globe. To find out how growing population affects our plans to deal with climate change, we talked with Princeton’s Robert Socolow, co-creator of one of the best models for thinking about how to prevent climate change. 

Many of my students are “green” consumers. They are proud of riding bicycles, they turn off lights when they leave the room, and they eat little or no meat. But they are usually surprised when I tell them that the most important decision they will make, as far as its impact on natural resources is concerned, is how many children to have.

Most sources of carbon emissions—heating and lighting homes and stores, making steel, providing food—grow in proportion to population. We’ve just hit 7 billion people, and there’s no way any single approach, or just two or three approaches, can effectively deal with the environmental pressures that this many people exert.

To foster a way of thinking about the problem of climate change that involves using many different approaches in tandem, Steve Pacala and I introduced the “stabilization wedge” in 2004. A wedge is a campaign or strategy that reduces carbon dioxide emissions to the atmosphere over the next 50 years by a specific amount, relative to some baseline future where nothing is done to slow down climate change. Examples of wedge strategies are driving more efficient cars, driving cars less far because cities are laid out differently, building lots of wind power, and growing many more trees.

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CATEGORIZED UNDER: Environment, Technology, Top Posts
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