Healthy mangrove forests provide a huge range of environmental benefits and need to be protected from "market failures".
Humanity needs a project with the vision and budget of the Apollo space programme if it is going to make the necessary giant leap towards sustainability.
With the world's food security facing a looming "perfect storm", GM food crops need to be part of the solution.
Key facts, figures and dates.
Key facts about the group of leading industrialised countries
IPCC chairman R K Pachauri says the organisation contines to play a vital role in the global climate policy debate, despite a turbulent past six months.
A chronology of key events
Endurance swimmer Lewis Gordon Pugh swims across a glacial lake on Mount Everest to highlight the impact of global warming.
The BBC's Roger Harrabin reports from a major climate sceptics conference in Chicago.
Modern technology may appear impotent in the face of the volcanic ash cloud disrupting global air travel. We asked scientists for their most outlandish solutions. And we want yours too.
A pair of purple herons are nesting for the first time in the UK at Dungeness in Kent, conservationists say.
The Gulf of Mexico oil leak raises deep questions over the environmental cost of our "addiction" to oil.
New research facilities are opened at Bangor University aim to develop ways to fight climate change.
The full text of the coalition agreement reached by the Conservatives and the Liberal Democrats.
It is time for a radical reshaping of global climate policy as the current approach is doomed to failure.
The political fallout from the oil spill in the Gulf of Mexico is already becoming apparent, the BBC's Paul Adams in Louisiana finds.
A climate research centre in Norfolk agrees a £45m deal with a Chinese university to explore the effects of global warming.
An expedition is spending the next month examining whether the Greenland ice sheet is close to collapse.
The ice cap on Uganda's highest peak has split because of global warming, the country's wildlife authority says.
Plants remain "an effective way" of tackling global warming despite emitting small amounts of a greenhouse gas.