has today used his second inauguration address
to commit his second term to ambitious action to curb greenhouse gas emissions, pledging to "respond to the threat of climate change".
Environmental issues were granted a prize spot near the top of Obama's address to the nation, with the President stating explicitly that "we will respond to the threat of climate change - the failure to do so would betray our children and future generations".
"We cannot cede to other nations the technology that will power new jobs and new industries - we must claim its promise,"
Obama also aimed thinly veiled criticism at climate sceptic Republicans, arguing that "some may still deny the overwhelming judgement of science, but none can avoid the devastating impact".
he said. "That is how we will maintain our economic vitality and our national treasure - our forests and waterways; our croplands and snow capped peaks. That is how we will preserve our planet, commanded to our care by God."
He also reiterated his campaign pledge to ensure the US accelerates investment in clean energy
, arguing that the shift towards low carbon sources of energy was now inevitable. "The path towards sustainable energy will be long and sometimes difficult," he acknowledged, but added that
"America cannot resist this transition; we must lead it".
Now - I don't mean to nag Barack, but we all heard this speech........ Full speech here