Electric cars already cheaper to own and run than petrol or diesel – study

Exclusive: Pure electric cars cost less over four years than petrol or diesel cars in the UK, US and Japan, researchers say, but China is set to lead the market

The seven megatrends that could beat global warming: ‘There is reason for hope’

Until recently the battle to avert catastrophic climate change – floods, droughts, famine, mass migrations – seemed to be lost. But with the tipping point just years away, the tide is finally turning, thanks to innovations ranging from cheap renewables to lab-grown meat and electric airplanes

Furniture that destroys forests: crackdown on ‘rampant’ trade in rosewood

Cites summit moves to protect the world’s most trafficked wild product by placing all 300 species of the tree under trade restrictions

Climate change threatens 50 years of progress in global health, study says

But slashing fossil fuel use also presents greatest global opportunity to improve people’s health in 21st century, says Lancet and UCL commission

Solar power drives renewable energy investment boom in 2014

Global clean energy investment leapt 16% in 2014 led by solar power surge in US and China – but Europe lags behind

Eating less meat essential to curb climate change, says report

Global livestock industry produces more greenhouse gas emissions than transport but fear of a consumer backlash is preventing action, says Chatham House report