Green news roundup: the Ecologist, buzzards U-turn and windfarm 'bribes'

Environment news • Tesco supplier accused of contributing to Amazon rainforest destruction • Rio+ 20 Earth summit could collapse, WWF warns • Zac Goldsmith sells the Ecologist for £1 • Zac Goldsmith: climate change pushes other issues off the agenda • Super farms are needed in UK, says leader of National Farmers Union • Leaked documents reveal UK fight to dilute EU green energy targets • Tory MP calls for countryside windfarm 'bribes' On the blogs • Giving power to the people can solve the wind farm stand-off • Around the world by bicycle? Great. But there's no need to race • Is there a UK nuclear power plan B? • Whatever happened to the 'coldest May in 100 years'? Multimedia • The week in wildlife - in pictures • The race to map Africa's forgotten glaciers – in pictures • Zac Goldsmith: 'I have no idea what sort of conservative George Osborne is' – video • The buzzard U-turn is welcome but the fight doesn't end there Features and comment • Washington DC prepares to eliminate hundreds of deer from local park • The 2012 winners of the Observer Ethical Awards in association with Ecover • Q&A: Rio+20 Earth summit • Are there errors in the IPCC reports? • Rio+20: don't wait for disappointment from the bureaucrats Best of the web • Mother Jones: North Carolina tries to wish away sea-level rise • IPS: IKEA under fire for ancient tree logging • BusinessGreen: Renewable energy investors fear UK dash for gas, says Ernst & Young For more of the best environment comment and news from around the web, visit the Guardian Environment Network . ...And finally • China warns foreign embassies publishing smog readings is illegal Official forecasts often predict light pollution while US embassy tweets say conditions are bad, hazardous or even 'crazy bad'