Overshooting 1.5°C is risky. That’s why we need to hedge our bets

The global response to climate change has gained momentum since the 2015 Paris agreement, yet it remains inadequate to meet the scale of the challenge. That agreement established the goal of holding global warming to well below 2°C, and to pursue efforts to limit it to 1.5°C. To achieve this, greenhouse gas emissions should peak and decline as soon as possible.

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