Cycling generates nearly £3bn a year for the UK economy, according to a new report released by the London School of Economics.

An economic study finds the economy of Mull gains £5m each year from visitors attracted by white-tailed eagles.

A report by 500 academics says that Britain's parks, lakes, forests, and wildlife are worth billions of pounds to the British economy.

Parks, lakes, forests and wildlife are worth billions of pounds to the UK economy, says a major report that could change planning policy.

Wales has to move to a green economy as fast as possible, says First Minister Carwyn Jones, as Welsh Secretary Cheryl Gillan says local opinion cannot be ignored.

EU nations must invest more in energy efficiency and green technologies in order to retain economic advantages, the European Commission urges.

Thousands of previously classified documents reveal tales of one man being abducted by aliens, a Lancaster bomber was shadowed by a strange craft and an RAF officer had a close encounter while on holiday in Sri Lanka.

Investing $1.3 trillion (£800bn) each year in green sectors would deliver long-term stability and growth in the global economy, a UN report suggests.

Sri Lanka looks to nature in a bid to boost its coffers

Getting prepared early for climate change impacts would bring economic benefits to the UK, engineering institutions say.

Much investment has been scaled back, but hopes remain

Invasive non-native species such as the grey squirrel and Japanese knotweed cost the British economy £1.7bn a year, a report suggests.

Sri Lanka is turning a vast area of jungle formerly used by Tamil Tiger rebels into a wildlife sanctuary.

Wind turbines have proved so successful in one Italian town that the local authorities are able to sell off the excess electricity they create and pump it back into the local economy.

The growing global demand for natural resources threatens to undermine Europe's economy, a report warns.

Collaboration between the UK and India could kick-start moves to a low-carbon economy, says a report by business leaders in the two countries.

How Sri Lankans are trying to learn to live peacefully with their lumbering elephants neighbours.

Are plans for a green economy still on track?

How critical is science for securing the UK's place in the world?

Hundreds of scientists have been holding a rally outside the Treasury to protest against cuts in their funding.

Dolphin spotters contribute an estimated £4m to Scotland's economy every year, new figures suggest.

China will host its first UN climate change conference this week, as it faces its own challenge to reduce greenhouse gas emissions as its economy grows.

Environmentalists in Sri Lanka express concern over plans to build a nuclear power plant by 2025.

The heads of six leading universities warn that deep cuts in the UK's science budget will harm the research base, universities and the economy.

Since Madagascar underwent a violent change of government in 2009, the island nation's economy has collapsed and illegal logging has boomed as people seek any means of earning a living. BBC Radio 4's Crossing Continents reveals how Madagascar's forests have been plundered since the political crisis began.

Researchers working in Sri Lanka take the first known photograph of a rare primate which was feared extinct.

The UK's science minister David Willetts is to say that there is a rational economic case for Britain to have a strong research base.

If bees and other pollinators were to disappear completely, the cost to the UK could be up to £440m per year, say scientists.