New Greenpeace USA Director Phil Radford has only been in post for three days, but already he's been arrested for taking action against climate polluters - he's one of the climbers in this banner hang outside the US State Department in Washington on Monday.  Read more »

During his election campaign President Obama placed a high emphasis on dealing with one of the greatest threats we all face - reducing the vast numbers of nuclear missiles held by both Russia and the United States.

As he put it in his inauguration speech "With old friends and former foes, we will work tirelessly to lessen the nuclear threat" In response to an arms control survey he was more specific – "I will not authorize the development of new nuclear weapons. And I will make the goal of eliminating nuclear weapons worldwide a central element of U.S. nuclear policy."

A detail from the Heathrow advert we put in the papers today

Tonight the House of Commons plays host to the Heathrow face-off. At about 7pm this evening, MPs will vote on a motion brought by the Tories and Lib Dems against the government's plans for expanding the airport with a third runway and a sixth terminal.

The stage is set for a bit of mud-slinging in the House. It'll probably be made worse by the fact that it's the opposition who has scheduled the vote - the government didn't want to have one. Because of the realities of party politics, even Labour MPs who oppose the runway will think twice about voting for a motion that's been put up by the ‘enemy'.

The climate crunch will soon make the credit crunch look trivial, and the G20 summit must tackle it now, writes Greenpeace UK Executive Director John Sauven writes for Comment is free.

This evening, 20 world leaders will gather in Washington, where they will dine at the table of their host, George W Bush, before attempting to perform life-saving surgery on the global economy.

Even in the face of the extraordinary repudiation delivered last week by the American people, Bush is unlikely to use the summit to also reshape the world's response to climate change. But that's exactly what his 19 guests should do.

I've noticed a higher-than-expected amount of traffic going to our Obama press statement over the past couple of days, so it looks like people are interested in what we make of Obama's victory.

I think this image, on the homepage of the Greenpeace USA website, says it all: