Climate Pledge Arena's carbon neutrality claims scrutinized over rainforest carbon credit controversy
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Climate Pledge Arena in Seattle aims to be the world's first "zero-carbon" sports venue, using green building materials, renewable energy, and carbon offsets.
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But some experts question whether the rainforest carbon credits purchased to offset the arena's construction emissions are overstated and "at risk of overcrediting."
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The voluntary carbon credit market has faced criticism for lack of rigor, oversight, and projects that don't deliver promised benefits.
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Amazon helped acquire the credits and admits more work is needed to ensure carbon market accountability and trustworthiness.
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While the arena itself is highly energy efficient, some say carbon neutrality claims are questionable due to uncertainties around the offsets.