Medical cannabis is to be available in the UK from November, but tight restrictions will drive patients to alternative sources, says Henry Fisher
Britain only has 58 wild mammal species to start with, and many have declined sharply in number since 1995 – with hedgehogs suffering a particularly severe fall
A congestion charge in Stockholm not only cut levels of air pollution, it halved the number of children admitted to hospital with asthma attacks
The UK must answer difficult questions on climate change, food security, aviation and more as it leaves the EU on 29 March 2019
Britain’s native red squirrels have been retreating for decades in the face of invasive grey squirrels, but predators called pine martens could help save them
Plans for the whole of the UK to shift to a system where consent for organ donation is assumed may actually do very little to save lives
A genetic analysis of Cheddar Man, one of the first people to settle in Britain after the last ice age, suggests that his skin was dark
Extreme health anxiety can be crippling but a lot of today's internet-fuelled "cyberchondria" doesn't need formal psychological treatment, says Zara Aziz
There is a mantra that nuclear and natural gas power stations are essential to keep the lights on in the UK. It's a myth, says Keith Barnham
Google has been summoned for discussions at the Cabinet Office to explain why government ads appear alongside extremist material, as brands also pull ads