EDIT
Now, as Friends of the Earth has discovered, the coalition could be about to rip up its commitments. The Treasury, the Department for Transport and the business department (run by the Lib Dem Vince Cable) have been lobbying within government to overturn the committee's advice that, to stay on target, carbon should be cut by 60% by 2030. So much for George Osborne's promise in 2009 that "under a Conservative government, the Treasury will no longer be the cuckoo in the Whitehall nest when it comes to climate change".
Other departments, including Huhne's, have been trying to defend the target. The decision has already been delayed several times: it now looks as if the showdown will take place at the meeting of the cabinet's economic affairs committee on Monday. If Osborne and Cable win, this will be the first time the climate targets have been rejected. It would set a disastrous precedent: the parties in power today will be unable to hold future governments to account if they too let the schedule slip. Friends of the Earth argues that if the Treasury and the business department win, Huhne must resign. To stay on under those circumstances would be to lose all remaining credibility. The central purpose of his department, and of his career in government, is to enforce the act.
But this is just the beginning of the coalition's assault on the environment. The government's Red Tape Challenge presents, on paper at least, the widest-ranging threat to environmental protection since the enclosure acts. Suddenly it is asking whether environmental legislation – yes, all of it – should be "scrapped altogether". Listed as negotiable are the entire Climate Change Act, the clean air acts, the rules governing ozone-depleting chemicals, the Town and Country Planning Act, the Countryside and Rights of Way Act, the acts establishing national parks (and therefore the parks themselves), the rules enforcing energy efficiency, governing hazardous waste, preventing litter and dog-fouling: all the regulations, grand and petty, that protect us from other people's greed and selfishness.
It's a breathtaking, astonishing initiative, and the little protest it has generated testifies to how punchdrunk this country has become as the government pummels every protection our forebears worked so hard to win, everything that defends us from a feral, unregulated market.
EDIT
http://www.guardian.co.uk/commentisfree/2011/may/09/coalition-greatest-threat-to-environment