An article by Agence France-Presse in Washington.
The White House called yesterday for urgent action to combat climate change, as it released a study on the impact of global warming across the United States and key sectors of the nation’s economy.
The four-year survey warned of serious threats to homes, infrastructure and industry in the face of extreme weather events.
“Climate change, once considered an issue for a distant future, has moved firmly into the present,” the report says. “Corn producers in Iowa, oyster growers in Washington state and maple syrup producers in Vermont are all observing climate-related changes that are outside of recent experience.”
US President Barack Obama vowed during his victorious 2008 presidential campaign to make the United States a leader in tackling climate change and the “security threat” it poses.
But he has failed to convince Congress to take significant action during his subsequent years in office.
As part of a new push on the issue, Obama was to give televised interviews with various meteorologists yesterday to discuss the findings of the third US National Climate Assessment.
Hundreds of the nation’s best climate scientists and technical experts – from both the private and public sectors – worked on the report, which examines the impact of climate change today and makes forecasts for the next century.
Even though the nation’s average temperature has risen by as much as 1.9 degrees since record keeping began in 1895, it’s in big, wild weather events where the average person feels climate change the most, said co-author Katharine Hayhoe, a Texas Tech University climate scientist. Extreme weather such as droughts, storms and heat waves hit us in the pocketbooks and we can see them with our own eyes, she said.
The researchers warned of drought in the state of California, prairie fires in Oklahoma and rising ocean levels on the East Coast, particularly in Florida, most of them caused by humans.
Sea level rise is also eating away at low-lying areas in places like Mississippi.
In the Southeast and Caribbean regions, home to more than 80 million people and some of the nation’s fastest-growing metropolitan areas, “sea level rise combines with other climate-related impacts and existing pressures such as land subsidence, causing significant economic and ecological implications.”
The report cited a locally sponsored study as saying that coastal areas in Alabama, Louisiana, Mississippi and Texas could face annual losses of US$23 billion by 2030, about half of that related to climate change.
The impact of global warming is unevenly distributed across US territory, with spectacular effects in Alaska, which researchers said warmed twice as fast as the rest of the country.
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