US could hike climate target after Senate vote - Holdren

Barack Obama’s chief science advisor says he expects the US’ emissions reduction targets will “become more aggressive over time” as climate science advances and Americans begin to see the benefits of transitioning to a low-carbon economy.

John Holdren, director of the White House Office of Science and Technology Policy, at right.
John Holdren, director of the White House Office of Science and Technology Policy, at right.
Published 17 December 2009, 08:52Updated 26 September 2016, 14:52