Green Options

“Worldwide, less than 8% of folks are responsible for 50% of emissions”, according to Professor Stephen Pacala of Princeton, co-author of Stabilization Wedges.

This group has a higher annual income than even the average American. But the US has the highest per-capita energy consumption rate of any nation, out-consuming the five most populated nations combined. Quite recent studies have confirmed what many already knew: that more affluent people consume more energy, and generate more green house gas (ghg) emissions. Thus, making significant cuts in ghg (to slow warming trends and mitigate climate change) without big cuts in this group’s ghg emissions is a major challenge.

The impact of greenhouse gases on global warming in the short term, and the possibility of severe climate change in the medium to long term, promise to create significant and lasting hardships for everyone. But these hardships will fall hardest on the world’s poorest, who are the ones least responsible for ghg-induced climate change.

It’s in the papers and on TV. It spreads across the Internet (including this very post), and it is finding its way into the classroom. Global climate change is nothing new. And it certainly isn’t going away. Not yet, anyway.

Nasa scientists have told government’s that a simple cut in worldwide emissions of soot could lead to a dramatic reduction in the effects of global warming, as well as preventing hundreds of thousands of deaths from air pollution.

Soot contains black carbon, thought to be the second largest cause of global warming after carbon dioxide. Whilst airborne, it it spread around the globe by wind, heating the atmosphere by absorbing and releasing warmth from the sun’s rays. When it falls to the surface it also darkens snow and ice in polar regions or high mountain ranges, further reducing the Earth’s ability to reflect solar radiation.

Cutting soot emissions has a virtually instantaneous effect since it disappears rapidly from the earth’s atmosphere, unlike CO2, which can linger for hundreds of years.

Today the fourth and final assessment from the United Nations’ Intergovernmental Panel on Climate Change (IPCC), “Mitigation of Climate Change,” will be released. More than 400 scientists and experts from 120 countries are in Bangkok, Thailand this week to finalize the report. The summary of Mitigation of Climate Change will be posted here; go here for a live webcast around 1PM local time. The full report will be released in September.

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