ENVIRONMENT

Sugarcane biomass converted into compounds that can be used as green fuel and lubricants.

Ketamine may stimulate region of the brain's prefrontal cortex, scientists discover.

The move to translocate the only population of Asiatic lions has not taken off.

Aerial photographs showing some of the ecological challenges faced by our planet.

Ongoing trials on rice crop could help cut indirect water consumption by 50%.

One of biology's biggest mysteries has been solved independently by a computer.

Lignin and tannin concentrations were reduced by the gene modification.

Park rangers left stunned after giant piles of worms mysteriously appear along Texas roads.

There are expected to be close to 10,000 nests in the colony.

The World Environment Day theme for 2015 is 'Seven Billion Dreams. One Planet. Consume with Care'.

Problems represent a small percentage of big picture, according to draft report.

Study disputes existence of global warming slowdown described by scientists over recent decades.

World Environment Day is observed on Friday 5 June to raise awareness of environmental problems.

Polygamy is illegal in India, but taking a second wife to fetch water is common practice.

More than 200 million people worldwide suffer the effects of air pollution

New species of "highly miniaturised" frogs measure less than one centimetre in length.

The 27th annual National Geographic Traveler Photo Contest is open for entries until 30 June.

Tweeting seals relay compressed information to scientists for international database.

The warming by carbon emissions exceeds combustion heat in a few weeks.

Ivory poaching has led to a decline in elephant population from 109,051 in 2009 to 43,330 in 2014.

Ocean Cleanup project will also create high-resolution map of plastic waste in Pacific.

Rescuers from British Divers Marine Life Rescue fighting to save pod of whales on Staffin Island

Photos illustrate the link between environmental and social issues such as climate change and poverty.

The hybrid species found to lead to less genetic diversity.

The stack is made of available polymers and a silver layer.

These targets are still not enough to limit warming to two deg C.

212 slaves died in 1794, shackled in the bowels of the vessel off South Africa

Once found in large numbers, habitat loss is pushing the species to a vulnerable situation.

Latest quake off Ogasawara islands was felt 1,000 km away at Tokyo.