Tom Clarke

Britain's botanists are heading out across the country collecting seeds from our most iconic and threatened trees, in an effort to combat invading pests and diseases.

Channel 4 News is examining the alarming changes taking place in the British countryside. Science Editor Tom Clarke takes a look at trees - and why they have never had it so tough.

Britain's big fishing bosses go to the high court to challenge an attempt by the government to take away some of their fishing quota and re-allocate it to smaller boats.

Researchers at hospitals in London and Glasgow plan to use an engineered virus to smuggle DNA into the heart in the first ever clinical trial of "gene therapy" for heart failure.

The latest strain of bird flu has now infected more than 100 people in China and so far 20 have died, writes Channel 4 News Science Editor Tom Clarke.

British engineers are developing a harpoon to clear up space junk, including defunct satellites and used rocket boosters threatening other satellites and astronauts on the International Space Station.

The UK wheat harvest is set to be a third lower than normal after a wet winter and freezing start to the year, putting further financial pressure on farmers and potentially driving up food prices.

Within five years a saliva sample taken at a GP's surgery could screen patients for their risk of developing breast and prostate cancer, according to a study of the genetic risk of three cancers.

We are in the grip of a long, cold winter, and UK gas supplies are feeling the strain - but the National Grid says the prospect of running out of gas is "nonsense", writes Tom Clarke.

The government grants planning consent for French firm EDF to begin construction of a new nuclear power plant at Hinkley in Somerset - but consent is not the same as actually getting the plant built.

Superbugs which have become resistant to our most powerful antibiotics represent a "catastrophic threat" to society, a report launched today by the government's top doctor says.