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New field evidence from Canada shows old wells can leave a hidden leakage footprint

New field evidence from Canada shows old wells can leave a hidden leakage footprint
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Old oil and gas wells may continue to affect the environment long after they have stopped producing, with new field evidence showing that their leakage footprint can be broader and more persistent than surface methane measurements alone reveal. A study led by researchers at The Lyell Centre, Heriot-Watt University, examined persistent methane leakage from a legacy petroleum well in British Columbi

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Blue and fin whale sightings on the rise in the Southeast Atlantic
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Blue and fin whale sightings on the rise in the Southeast Atlantic

More than 40 years after the end of commercial whaling, new research reveals a recent increase in sightings of the world's two largest whale species in the southeastern Atlantic. The findings, published in the African Journal of Marine Science, compile more than 60 years of confirmed sightings and strandings from Namibia and South Africa's west coast. Although overall numbers remain low, sightings of both species have increased markedly in recent years—with 95% of observations recorded since 201

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