Roger Payne, conservationist and popularizer of whale song, dies aged 88

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US government toughens rules on chemicals used to break up oil slicks

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Batter up! Lawmakers suit up for annual Congressional Baseball Game

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The sound ecologist capturing a disappearing world: ‘70% of habitats I recorded are gone’

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River in ‘wettest place in England’ in Lake District almost completely dry

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It may be hot, but most British homes don’t need aircon. Switch it off | Hannah Fearn

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Massive strike pits African fishers against ‘superprofitable’ EU firms

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We love our urban trees and thought we’d won the battle to save them. How wrong we were | Sandra Laville

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Our Planet II review – so much of David Attenborough’s new show is just astonishing

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Shell drops target to cut oil production as CEO guns for higher profits

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