Debthink
I manage Restore Mass Ave, an environmental non profit that adds urban forest​ in Washington DC. Debthink is my personal site for posting about science and the environment, with info about my books.
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Entries in climate (2)

Thursday
Sep102009

Hansen: Earth’s climate nears the tipping point

June 2008    Updated in my blog post Should Scientists Attack the Cap and Trade Bill?

Like many who graze news stories about ways the United States might respond to global warming, I thought Congress would do well to pass any of the proposed bills to cap US emissions of carbon dioxide (C02), the principal greenhouse gas. I assumed that neither the specific level of reduction nor the exact timing mattered—so long as Congress acted soon.

But on June 23, I heard NASA scientist James E. Hansen argue that we’re approaching a point where planetary impacts will be irreversible.

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Wednesday
Aug052009

Acidifying oceans remake Earth and our food supply

March 2008

What’s happening in the world’s oceans? To the known problems of overfishing, pollution, and invasive organisms borne on ship hulls, we can add the lesser-known alterations caused by climate change

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