Extra virgin ‘100% real’ olive oil goes on sale in UK
French Querubi oil, claiming to be produced without insecticides or fertilisers, aims to stand out in an industry plagued by fraud
Environment
Can a hashtag change the fashion industry?
On Fashion Revolution Day, people will take to social media to ask brands #whomademyclothes, but critics say hashtag activism makes little difference
Permafrost ‘carbon bomb’ may be more of a slow burn, say scientists
Carbon dioxide from thawing Arctic permafrost is likely to be released gradually, rather than in a catastrophic eruption as previously predicted – but impact of emissions will still be great, new research suggests
The answer lies in the soil and pesticides
Letters: A major research study by Newcastle University published last year found not only that organic fruit and veg contains more beneficial nutrients, but also four times less pesticide residues
Polar bears face starvation as unlikely to adapt to a land-based diet, says report
New research casts doubt on the theory that polar bears could survive habitat loss as sea ice declines by foraging for food on land
Is being vegan the most ethical way to live?
Reducing meat consumption is important, but going vegan may not solve all our problems…
If you have an ethical dilemma, email Lucy at lucy.siegle@observer.co.uk