Global biodiversity targets won’t be met by 2020, scientists say

World leaders failing in their pledge to stop wildlife decline, save habitats and create marine reserves

In the Age of Extinction, which species can we least afford to lose?

Climate change and human intervention are accelerating the planet’s loss of biodiversity. So should we try to preserve ‘useful’ bees before ‘cuddly’ tigers?

WWF International accused of ‘selling its soul’ to corporations

Pandaleaks writer says conservation group has forged links with business which is using it to ‘greenwash’ their operations

How can we stop the persecution of birds of prey?

It’s time for us to get tough on wildlife crime

If you have an ethical dilemma, email Lucy at lucy.siegle@observer.co.uk

2014 Masters Grand Slam: The inaugural Longines Los Angeles Masters

Belgum’s Jos Verlooy and his horse Domino took home the top prize in the Longines Grand Prix. The inaugural Longines Los Angeles Masters came to a close with eighteen-year-old Belgian rider, Jos Verlooy, taking the top prize in the Longines Grand Prix, the most prestigious class of the four-day competition. Verlooy emerged the winner with … Read more

Emma Thompson in the Arctic with Greenpeace: ‘There are more good-looking men on this boat than any place I have ever been’ – video

Actor Emma Thompson has gone on an expedition with Greenpeace to raise awareness of the dangers of drilling for oil. She doesn’t want to tweet, but Stephen Fry has told her to ‘get a grip’. It’s freezing cold, Greenpeace keep asking her to pose for pictures on icebergs and her Arctic gear makes her ‘look like a sofa’. Here is her adventure

• Read an interview with Emma Thompson in the Guardian’s Weekend magazine on Saturday