The primary election results from “Super Tuesday” are still trickling in, but one thing is clear: all of the leading presidential candidates in the United States endorse mandatory limits on greenhouse gases. Given the past seven years of obfuscation and, many claim, outright obstruction from the administration of President George W. Bush, this will come as a relief to scientists and many policymakers in the US and abroad.

The news comes from the right side of the political spectrum. While leading Democrats have formulated official and strong positions on global warming, the Republican field until now has been a bit of a mixed bag – in part because little attention has been focused on the issue. But with voters in 21 states weighing in, the GOP candidate with the strongest and clearest position on global warming, John McCain (pictured), came out with a commanding lead. (NY Times).

The Arizona senator bucked Republican leaders on the issue long ago, and is currently sponsoring legislation that would create a cap-and-trade program to reduce greenhouse gas emissions to roughly 60% below 1990 levels by 2050.

On the Democratic side, the battle between New York senator Hillary Clinton and Illinois senator Barack Obama will continue in the coming weeks – and perhaps months. Both, however, have endorsed cap-and-trade programs to cut emissions 80% below 1990 levels by mid-century.

Cross-posted from Jeff Tollefson on The Great Beyond

Image: John McCain 2008 / www.JohnMcCain.com

Posted for Jeff Tollefson

The primary election results from “Super Tuesday” are still trickling in, but one thing is clear: all of the leading presidential candidates in the United States endorse mandatory limits on greenhouse gases. Given the past seven years of obfuscation and, many claim, outright obstruction from the administration of President George W. Bush, this will come as a relief to scientists and many policymakers in the US and abroad.

The news comes from the right side of the political spectrum. While leading Democrats have formulated official and strong positions on global warming, the Republican field until now has been a bit of a mixed bag – in part because little attention has been focused on the issue. But with voters in 21 states weighing in, the GOP candidate with the strongest and clearest position on global warming, John McCain (pictured), came out with a commanding lead. (NY Times).

The Arizona senator bucked Republican leaders on the issue long ago, and is currently sponsoring legislation that would create a cap-and-trade program to reduce greenhouse gas emissions to roughly 60% below 1990 levels by 2050.

On the Democratic side, the battle between New York senator Hillary Clinton and Illinois senator Barack Obama will continue in the coming weeks – and perhaps months. Both, however, have endorsed cap-and-trade programs to cut emissions 80% below 1990 levels by mid-century.

UPDATE

Those who like to listen as well as read news can hear the UK’s Radio 4 Today Programme discuss which Democrat is greenest on this audio clip (13.44 minutes in) – Ed.

Image: John McCain 2008 / www.JohnMcCain.com