The Guardian

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Another year of reports, drafts and meetings brings us a year closer to 2020. But what have we achieved in 2007? By Murray Armstrong

More than 100 countries face political chaos and mass migration in global warming catastrophe. By Robin McKie

· Scientists hope evidence will save other areas · Zoologists appeal for change in land-use policy. By Alok Jha

The vast tar sands of Alberta in Canada hold oil reserves six times the size of Saudi Arabia's. But this 'black gold' is proving a mixed blessing for the frontier town of Fort McMurray, fuelling both prosperity and misery.

Cutting greenhouse gases and switching to sustainable development are unlikely to prevent disasters caused by climate change, one of the world's most respected environmentalists warns today. By Ian Sample

Biofuel plantations, logging and hunting are stealing habitats from our closest relatives, says report

Madagascar is home to some 200,000 known species of animals and plants, many of which, like the lemur, are not found anywhere else in the world. Photograph: Wolfgang Kaehler/Corbis

Warplanes seen setting off for refuge in mountains. Campaign for military offensive intensifies

· Output peaked in 2006 and will fall 7% a year · Decline in gas, coal and uranium also predicted. By Ashley Seager

Refugees from across the country found peace in the Kurdish north, but are now threatened by shelling and cross-border raids. By Michael Howard

Move would extend UK oil, gas and mineral rights. By Owen Bowcott

Britons produce more carbon emissions from air travel a head than any other country, a study reveals today, citing the country's predilection for low-cost airlines as a major factor. By Thair Shaikh

The restraint of the last few years is brought to an end by rising demand for crops the land could bear. By Tom Phillips in Alta Floresta

Ministers hope potential mineral wealth and hydro-electricity will allow nation to break free from Denmark. By Paul Brown