Posts Tagged ‘Bill Chameides’

I think everyone agrees that we had some very inspiring presentations yesterday at the Earth’s future panel. Here’s what I retained:

Dr Bill Chameides said that, as a “lobbyist” for the environment, explaining complex issues about climate changes to elected peoples in positions of power is good, but that explaining simple issues to a lot of voters is even better. He joked that his “impact factor” was surely higher when he appeared on a cooking TV show to explain the meaning of “carbon footprint” than when he was publishing scientific papers. He warned that people from outside science, when they listen to scientists, are all too often left with the impression that while scientists are very intelligent, people can’t understand what they are talking about. Tackling climate change is all about communication, he said, and a scientist that takes a position on an environmental issue is not necessarily losing his or her credibility. His motto: Education, Communication, Multidisciplinary. I met him randomly today and he asked me put up a link to his blog.

Dr Veerabhadran Ramanathan warned about removing pollutant sulfur dioxide from the atmosphere without removing twelve times more CO2 at the same time. The calculation is simple: sulfur dioxide has a cooling effect on the earth climate twelve times more powerful than the warming effect of CO2. Along the same lines, he explained that emissions of other gases and particles that have greater warming effects that CO2, such as black carbon, should also be reduced. He said that global warming is about to reach thresholds that will bring iconic changes to the Earth surface. Here is the list in order of manifestation: i) the ice age oscillation switches off (this threshold is already reached; we will have no more ice ages), ii) the melting of the arctic ice cap, iii) Greenland melts, iv) the Amazon rain forest disappears, v) El Nino southern oscillation stops, vi) thermo-haline circulation shuts down, vii) the Antarctic ice cap starts to melt and viii) the Antarctic fully opens.

Dr Janet Hering also referred to three important events:

Galileo stated that the earth revolves around the sun (1610)
Darwin wrote that humans descend from apes (1859)
The term anthropocene was coined by Nobel prize winner Paul Crutzen, meaning that humankind has entered a new geological era (2000 – see his paper in Nature).

What are her solutions? We need to participate in local efforts on the community scale and focus on education, outreach and the empowerment of women.

I refer to Julia’s post for comments on Sir David King’s speech


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