Harsh: Europe's cannabis died just as the first farmers arrived
17 May 2018
Cannabis – the source of the drug marijuana – virtually disappeared from Europe just as farmers arrived, so they didn’t get the chance to grow it for another 4500 years
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It is worth valuing trees, but all deserve our respect
9 May 2018
The benefits trees bring to our lives are now being quantified by a band of treeconomists, an approach that could help us give trees the respect they deserve
Treeconomics: How to put a fair price tag on urban forests
9 May 2018
We can now calculate the exact value of a tree, from shade to beauty. Doing so could be the best way to protect them – and plan the forests of the future
The world's tallest tree costs more than a private island
9 May 2018
We valued 7 of the world's most famous trees, from strangler figs draping ancient ruins to a 9000-year-old spruce. The most pricey comes in at £11 million
Magical regrowth: Kew Gardens opens revamped Temperate House
3 May 2018
Restoring the world’s largest Victorian glasshouse to its former architectural glory at the UK’s famous gardens has also reinvented it for the 21st century
