Ken Kimmell


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Ken Kimmell is president of the Union of Concerned Scientists and has more than 30 years of experience in government, environmental policy, and advocacy. He is a national advocate for clean energy and transportation policies and a driving force behind UCS’s “Power Ahead” campaign to build a large and diverse group of clean energy leadership states. Prior to joining UCS in May 2014, Mr. Kimmell was the Commissioner of the Massachusetts Department of Environmental Protection (MassDEP), and served as chairman of the board of the Regional Greenhouse Gas Initiative. See Ken's full bio.

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The sun sets on Paris, where international climate negotiations are set to take place.

The Paris Climate Summit: Our Last, Best Chance to Save the Planet?

In one week, Paris will host an international summit on climate change. The outcomes are more important than ever before. Read more >

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Why The Investigation Of ExxonMobil Matters

Sometimes simple truths lie dormant for a long time until they are powerfully brought to our attention. But, once our understanding is kindled, the implications—and changes in public attitudes—can spread like wildfire, gathering momentum at a breathtaking pace.

That is what seems be to happening right now with a simple, but powerful idea: that, for decades, the world’s largest fossil fuel companies knew all about the harm their products posed to the planet, yet many chose to deceive the public about climate science and block meaningful reform. Read more >

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Four Challenges for China’s Cap and Trade Program

When Congress failed to pass national climate legislation in 2010, many said that marked the end of so-called “cap and trade” programs, —in which government sets an overall limit on pollution and issues pollution “allowances” that individual companies can use or trade with others. The naysayers couldn’t be more wrong, as demonstrated by the recent announcement that China will start a national cap and trade program in 2017 as a primary tool to lower its emissions of the heat trapping gases that cause global warming. Read more >

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Scientist Who Has Discovered Other Planets Gives Gift to Help Protect This One

UCS has received a remarkable gift from an even more remarkable scientist.

William Borucki has served as the principal investigator for NASA’s Kepler Mission, which has discovered more than 1,000 confirmed planets.

“I’ve spent a large portion of my career searching for other worlds,” Borucki told us. “What we’ve found has underscored how important it is to protect this one. While we can detect other worlds, we cannot go to them. Our future is here on Earth and we must do much more to ensure that our planet’s climate remains hospitable.”

Dr. Borucki will share a portion of the funds he is receiving from the Shaw Prize in Astronomy – often considered the “Nobel Prize of the East” – with UCS to support its work on climate change. Read more >

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How Scientists Helped Drive The Iran Deal

Last week, the United States officially approved the Iran nuclear agreement when congressional opponents failed to round up the votes needed to stop it. The debate was often bitter and polarizing, and the vote in the Senate was divided strongly along partisan lines.

But here is something everyone should be able to agree on: scientists played a highly prominent role in this agreement, befitting the complex, technical nature of the subject. Read more >

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