BBC News

Climate change is increasing the risk of severe 'food shocks' where crops fail and prices of staples rise rapidly.

Can the smell of the sea cool the Earth?

Scotland's salmon farming industry has begun farming a new type of fish, specifically to keep salmon clean.

Asda is to increase the price it pays its milk supplier to "a level that will assist farmers during the current crisis", the supermarket says.

A UK museum says it may hold Zimbabwean human remains, but cannot confirm if they are the "skulls of beheaded heroes" referred to by President Mugabe.

Comet 67P has passed the closest point to the Sun in its 6.5-year orbit, with the Rosetta spacecraft still in orbit around it.

Stargazers captured the dazzling display of the annual Perseid meteor shower as it reached its peak on Wednesday night. BBC News viewers sent in their photos.

The force of the explosions in the Chinese port city of Tianjin were so vast they "alarmed" China's National Earthquake Network.

The annual Perseid meteor shower reached its peak during the night, although weather spoilt viewing in some parts of the UK.

Environmental groups are angry at moves to give ministers the power to decide whether or not to approve applications for fracking if local authorities take too long.

Shale gas planning applications are to be fast-tracked under new government measures to crack down on councils that delay on making a decision.

A mass burial site that may contain 30 victims of the Great Plague is found underneath Liverpool Street station as part of Crossrail works.

One World Elephant day, the BBC is told how poaching could see the end of elephants in the wild by 2030.

A look at some of your photos of the Perseid meteor shower in 60 seconds.

The BBC's Pallab Ghosh explains why the Perseid meteor shower happens every year.

Arctic oil drilling may harm Shell's reputation and cost it dear, says the former BP boss Lord Browne, but Shell says the risks are manageable.

The figurehead from a 15th century ship, the Gribshunden, has been raised from the Baltic Sea near Ronneby, Sweden, more than 500 years after it sank.

Are Nasa's robotic spacecraft plans in trouble?

Researchers have developed a robot that can build "baby" robots that get progressively better at moving without any human intervention.

Engineers develop a robotic system that evolves and improves its performance.

IAAF retests from the 2005 and 2007 World Championships return "adverse findings" for 28 athletes tested for doping.

How does Australia's pledge on carbon emissions compare in the run-up to the Paris climate summit?

A second attempt to reintroduce an extinct bumblebee to the UK is proving successful, conservationists say.

Skywatchers are in for a dazzling display as the annual Perseid meteor shower reaches its peak on Wednesday.

Why is Japan restarting the Sendai reactor?

A survey examining 200,000 galaxies in multiple wavelengths offers the best estimate yet of how fast the Universe is fading.

Astronauts on board the International Space Station (ISS) sample some space-grown lettuce.

A toxic leak of wastewater that has turned a Colorado river mustard yellow is three times larger than US officials had originally estimated.

Drought sensitive butterfly species could be driven to extinction across the UK by 2050 according to new research.

Technology being developed at the nuclear spent fuel facility at Sellafield, Cumbria, could prove highly lucrative in the growing business of industrial clear up.

Bee-killing Asian hornets spreading across Europe are fatally attracted to a carnivorous plant, French experts say.

A group of divers in Cornwall are engaged in an underwater clean-up, in a bid to stop plastic rubbish damaging marine life.

Six suspected tiger poachers are shot dead in a gunfight with Bangladeshi police in the world's largest mangrove forest, the Sundarbans.

At least 170 people have been killed in Pakistan in this year's monsoon rains.

How far are they going in the battle to save India's strays?

Cuban people are getting round a lack of internet access by having a weekly delivery of content by hand.

Scotland is to ban the growing of genetically modified crops, the country's rural affairs secretary announces.

The data scrambling systems used by millions of web servers could be much weaker than they ought to be, say researchers.

The Panama Canal says it will temporarily cut the draft - or depth in the water - of ships allowed through because drought has lowered water levels.

There is now Pyongyang Time to add to Greenwich Mean Time, Eastern Standard Time and Lord Howe Standard Time. Time zones are as much about politics, diplomacy and rebellion as they are about... the time.

Physicists unveil a raft of new findings about neutrinos bombarding the Earth from above, below - and within.

Australian flights to and from the holiday island of Bali are halted due to a persistent volcanic ash cloud.

The BBC's Richard Westcott speaks to Prof Graham Braithwaite at The Accident Lab at Cranfield University, where air accident investigators are trained.

Would a hunting ban cost more lives than it saves?

Scientists warn that Nepal's devastating April earthquake failed to release all of the stress built up underground, increasing the chance of a quake further west.

A study of global fish populations suggests fast-growth fish species are more vulnerable to population collapses than previously thought.

Ocean experts have said a video modelling of ocean currents predicted that the wreckage of MH370 would be discovered near the remote French Indian Ocean island of Reunion.

Fishermen's leaders warn the creation of Marine Protected Areas around Scotland's coast could result in a modern-day "clearance" that would devastate small fishing communities.

Nasa's Deep Space Observatory satellite has captured composite images of the moon from a million miles away.