Chris Huhne reveals the government is considering offering its proposed energy efficiency loan scheme to non-domestic properties
'Top hat' damaged by robot vehicle shortly after US interior secretary had praised device
Watchdog files official request calling for reinstatement of polluter pays tax to support cash-strapped Superfund clean-up programme
New prime minister Julia Gillard pledges to "re-prosecute the case for a carbon price"
Disclosure forms from 2008 reveal Louisiana district judge held shares in Transocean, Halliburton and a host of oil firms
Ban Ki-moon writes to world leaders arguing that green measures offer safest route out of recession
Judge orders lifting of deepwater drilling moratorium, Obama administration promises immediate appeal
Meeting to be rescheduled as Obama clears his diary for showdown with General McChrystal
White House meeting with key Senators expected to finalise climate bill strategy
The speech may have been lacking in green substance, but the full budget report still contained a handful of important low carbon commitments