The Fossil-free Movement at Harvard

April 15, 2015 2:17 pm0 comments
Harvard student Hannah Borowsky speaks at a Divest Harvard event.

“Symbols matter, because they signal our intent, and they invite other people to join in our intent.” – Naomi Oreskes, Professor, Harvard University. Almost 20 years have gone by since that confident moment in Kyoto when leaders of nearly all the planet’s nations signed on to reduce greenhouse gas emissions. In the […]

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Uncertainty doesn’t imply nothing is known or nothing should be done

October 17, 2014 3:39 pm3 comments
Climate Forcing and Climate Sensitivity with ranges of Lewis and Crok paper and IPCC AR5

While Judith Curry brings up some interesting notions in ‘Climate Sensitivity Uncertainy‘, I don’t agree with many of her arguments and conclusions. I’m pleased that Dr. Curry acknowledges that “uncertainty in itself is not a reason for inaction” (see also ‘Why Climate Uncertainty is No Excuse for Doing Nothing‘ on […]

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Climate Sensitivity Uncertainty

October 3, 2014 7:20 pm3 comments
Nic Lewis and Judith Curry graph on ECS and TCR results from recent paper in Climate Dynamics

In a press conference ahead of the UN Climate Summit two week ago, UN Secretary-General Ban-Ki Moon stated: “Action on climate change is urgent.  The more we delay, the more we will pay in lives and in money.” The recently appointed UN Messenger of Peace Leonardo DiCaprio stated “The debate is over. […]

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Scientists Talking Dirty: On “climate mitigation” and the goal of limiting warming to 2ºC (3.6ºF)?

October 1, 2014 2:31 pm0 comments
Scientists Talking Dirty: On “climate mitigation” and the goal of limiting warming to 2ºC (3.6ºF)?

Intro by Michael Quirke: In light of last week’s climate summit, I’ve asked for some thoughts from the scientists on “climate mitigation,” which entails reducing fossil fuel combustion or capturing and storing emissions. [1] In the context of climate change, “mitigation” can be a very dirty word for conservatives because it implies more government intervention […]

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Teaching Climate Change through Six Questions

August 12, 2014 3:47 pm5 comments
Teaching Climate Change through Six Questions

Given all the back and forth on climate change out there, it can be hard to know what to think. It’s also a complicated subject, so much of the information is distributed all over the place or in huge tomes. Below I’ve put together a fairly quick overview that I’ve […]

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David Roberts on Grist.org: “If you aren’t alarmed about climate, you aren’t paying attention.” [For general commentary by CCNF Scientist Community]

April 21, 2014 6:24 pm4 comments
David Roberts at Grist.org

Summary of initial comments (paraphrases and quotes) [updated 4/28/14]: Dr. Andreas Schmittner: “Climate scientists don’t predict catastrophic impacts. They project impacts.” There’s an important difference. “Given the forcings climate scientists can project climate change for the future” but whether it is “catastrophic change [or] benign change [is a] valuation up to […]

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