More than 7,000 will be writing about climate change for Blog Action Day 2009. (Photo: Nez)

Blog Action Day, a movement to get bloggers from across disciplines and around the world to focus on a single topic for a day has, in just two years, swelled to more than 7,000 bloggers writing for an estimated 11 million readers worldwide. The focus of this year's Blog Action Day is climate change. And because we are at a critical juncture in the narrative of national and international climate policy, the timing couldn't be better.

Even if it doesn't feel like there is the same intensity in momentum right now for action on climate change (at least in the U.S.) that there was 12-24 months ago, there is a tremendous amount of political activity surrounding the climate change issue right now. From the recent climate summit at the opening of the United Nations General Assembly to the meeting of the G-20 in Pittsburgh, the international policy community is gearing up for the upcoming Copenhagen climate change summit beginning in December.

Projects like the TckTckTck campaign and the 350 campaign are mobilizing support for action on climate change from grass roots organizations, trade unions, faith groups and businesses in advance of the Copenhagen climate meetings in December.

But what about the government of the United States? Most observers will tell you that for any meaningful agreement to be reached in Copenhagen, the U.S. must take a leadership role, a role that would be far easier to assume having passed a climate bill of their own through Congress. But because the health care debate has taken so much time, many thought the chances of passing climate legislation before Copenhagen was unlikely—but that was before the game-changing op-ed by Sen. John Kerry, a Democrat, and Sen. Lindsey Graham, a Republican, in Saturday's New York Times.

Sen. Graham's support for the Kerry-Boxer climate and energy bill has breathed new life into those hoping for a pre-Copenhagen climate bill from U.S. lawmakers. And with the ink drying on the Senate climate bill and on the docket to begin committee debate at the end of the month, the timing of Blog Day of Action 2009 is absolutely impeccable.

You can follow Blog Action Day's coverage of climate change on twitter using the hashtag #BAD09.

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Image via Nez