Air pollution in Britain: state-sanctioned mass poisoning
John Vidal: Despite the devastating costs in terms of lives and damage to the economy, UK governments have failed to tackle air pollution
Dolphin therapy is a scam
Dea Birkett: The film Dolphin Tale perpetuates a myth that swimming with dolphins will 'restore' disabled people such as my daughter
Why fiddle with our clocks? This ritual persecution of the sleepless must end
Simon Jenkins: The return from summer time to gloomy GMT owes nothing to nature and all to the Scots. Let us down south enjoy a little light
Sunscreen pill could be available within five years, scientists say
Researchers uncover way coral shields itself against harmful ultraviolet rays and believe it could pave way for anti-sun compound to protect humans
Have we had our fill of water?
We've been told to drink at least eight glasses a day. Celebrities clutch bottles like fashion accessories and children are urged to swig in class. But as Nigella Lawson is outed as an 'aquaholic', is the tide finally turning on the health benefits of H20?
Anti-HIV drug made by GM plants begins trials in humans
The antiviral was manufactured in GM tobacco with a view to using the same technique to slash the cost of other life-saving drugs in the developing world
Our green spaces are priceless
Nicholas Milton: The government's attempt to put a monetary value on nature threatens the existence of our remaining parks and playing fields
UK green spaces worth at least £30bn a year in health and welfare, report finds
First ever full assessment of the UK's natural assets quantifies the benefits – and warns of the cost of failing to protect them
Weatherwatch: hay fever arrives early
Paul Brown on this year's potent mix of warm, dry weather, brisk breezes and air pollution
From the archive, 25 March 1925: Opponents of summer time
Originally published in the Manchester Guardian on 25 March 1925: The bill which proposes to make summer time a permanent institution came before Standing Committee C of the House of Commons yesterday, Mr. E. H. Turton in the chair