Undoubtedly, it’s a different climate for talking about climate change this year. Extreme weather events have replaced legislative proposals as the big hook for discussing the issue. What hasn’t changed much is that we are still talking about it, and much of the talk still centers on the costs.
When climate legislation was before Congress last year, much of the discussion focused on the costs of reducing greenhouse gas emissions. This year we are seeing a new set of headlines. Story after story describes communities across our country being hit by extreme weather events – the floods in the Mississippi, Missouri and Souris rivers, the drought in Texas, and the wildfires in Florida and Arizona. We see vivid photos of temporary levees being built around nuclear power plants and wildfires threatening stored plutonium in New Mexico. The increasing number of extreme weather events is a wake-up call of the costs we will incur if we fail to address climate change.
We are teaming up with Scientific American to explain the link between climate change and extreme weather. In a new three-part series featured on Scientific American.com, award-winning science journalist John Carey dissects the science, impacts, and actions to take regarding the record-breaking floods, heat waves, droughts, storms, and wildfires experienced across the United States and the world in the past year. The first installment appears today.
To see the economic costs of extreme weather you don’t have to look all the way to Russia where last summer’s heat wave caused extensive wildfires and crop losses roiled world markets for wheat. Nor do you have to look as far as Europe where in the summer of 2003, a 1-in-500 year heat wave caused at least 35,000 premature deaths. No, extreme weather events have recently occurred within the United States. In Cedar Rapids, Iowa, extensive flooding in the region in 2008 caused damage estimates of $8-10 billion. In Nashville, Tennessee, in May 2010, a 1-in-1000 year storm caused floods resulting in more than $3 billion in damage.
Whether you think these are just isolated incidents or are part of the emerging pattern of climate change, there is one thing we can all agree on. These events result in significant economic loss and to the extent we can build greater resilience into our economy to minimize losses from extreme weather, we will all be better off.
Co-authored by Nick Mabey and originally appeared in The Hill's Congress blog
Once a serious issue becomes politicized and turns into a virtual weapon in the culture wars, it can seem impossible to move beyond partisan bickering and identify a reasonable and responsible course of action. But as those whose job is protecting national security have shown us time and again, it is important to chart a path forward --despite political battles-- when a situation is dangerous and the future is in doubt.
Defending the nation routinely requires making weighty decisions despite uncertainty, incomplete information, and limited resources. To do its job in these difficult situations, the military routinely uses an approach known as risk management. Risk management provides a systematic way to consider threats and vulnerabilities, “knowns and unknowns”, and to take steps to minimize risk.
Every January, NOAA’s National Climatic Data Center provides an expert analysis of the previous year’s climate. This puts the extreme weather of 2010 into a broader context. The record warmth of the past year adds to the huge body of evidence that the earth continues to warm.
Here are some of NOAA’s key finding:
Global average temperature
- 2010 is tied with 2005 as the warmest year since 1880 when NOAA’s records begin. The temperature was 1.1°F above the 20th century average.
- The Northern Hemisphere was the warmest on record while the Southern Hemisphere was the 6th warmest since 1880.
- 9 out of the 10 warmest years on record are from 2001 and after.
- Every year since 2000 is one of the 15 warmest years.
- It is the 34th consecutive year that was warmer than the 20th century average.
- NOAA scientist David Easterling said that the top ranking of 2010 reinforces the conclusion that the climate is continuing to warm because of increasing greenhouse gases in the atmosphere.
10 Warmest Years on Record
°F above 20th Century Average
- Global snow cover was the lowest on record
- Arctic sea ice reached its third-smallest summer minimum
- In the United States, both land surface temperature and amount of rainfall were in the top third since 1880.
- Although the eastern U.S. is having a cold winter, Canada and the Arctic are unusually warm, maintaining a globally warm condition.
Read more from NOAA:
Jay Gulledge is Senior Scientist and Director of the Science and Impacts Program