Climate change

Eugene Robinson | Hot enough for you?

January 12, 2013 

All right, now can we talk about climate change? After a year when the lower 48 states suffered the warmest temperatures, and the second-craziest weather, since record-keeping began?

Apparently not. The climate change denialists – especially those who manipulate the data in transparently bogus ways to claim that warming has halted or even reversed course – have been silent, as one might expect. Sensible people accept the fact of warming, but many doubt that our dysfunctional political system can respond in any meaningful way.

The thing is, though, that climate change has already put itself on the agenda – not the cause, but the effects. We’re dealing with human-induced warming of the atmosphere. It’s just that we’re doing so in a manner that is reactive, expensive and ultimately ineffectual.

Congress is being asked to approve $60 billion in emergency aid for the states that were ravaged by Hurricane Sandy. Strictly speaking, it is not possible to say this freakish storm was caused by climate change. But Sandy was the second hurricane to strike the northeastern United States in two years – which, to say the least, exceeds the normal frequency of such events.

And Sandy was part of a pattern. According to the National Oceanic and Atmospheric Administration, 2012 was “the second most extreme year on record,” with 11 weather-related disasters including Hurricanes Sandy and Isaac as well as swarms of killer tornados across the Great Plains and the Ohio Valley.

The year was also exceptionally dry; by July, about 61 percent of the country was experiencing conditions that qualify as “drought.” On a cheery note, the situation was not as bad as the Dust Bowl droughts of the 1930s. Less happily, the lack of rainfall in 2012 exacerbated wildfire activity. “The Waldo Canyon fire near Colorado Springs, Colo., destroyed nearly 350 homes and was the most destructive fire on record for the state,” NOAA reported.

We’re also getting heat. Lots of it.

The average temperature in the contiguous United States for 2012 was 55.3 degrees. That’s 3.2 degrees above the average for the 20th century, according to NOAA, and an astonishing 1 degree higher than 1998, the previous warmest year.

In some parts of the world – Alaska, for example – it was a bit cooler than usual. But preliminary indications are that in terms of global temperatures, 2012 fits the overall pattern of a warming world. Of the 10 hottest years on record, all have come since 1998.

The consensus among climate scientists is that this is happening because the concentration of heat-trapping carbon dioxide in the atmosphere is nearly 40 percent greater than at the time of the Industrial Revolution, when humankind began burning fossil fuels on a grand scale.

Most scientists also agree that their predictions were conservative about how fast temperatures would climb, glaciers would melt and sea levels would rise. This may all be happening more quickly and inexorably than anyone thought.

So we’re going to deal with climate change whether we like it or not. We’re going to spend many billions of dollars over the coming years providing disaster relief in the wake of hurricanes and other destructive weather events. If we’re a bit smarter, we’ll spend even more to protect our coastal cities from storm surges of the kind that devastated parts of New York. Investment in barriers and floodwalls will ultimately save both money and lives.

But if we were really smart, we’d be talking about how to mitigate the ultimate damage by weaning ourselves from coal, oil and other energy sources that produce carbon emissions.

Contact Robinson, a columnist for The Washington Post, at eugenerobinson@washpost.com.

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