Expected CO₂ levels in 2024 threaten 1.5°C warming limit

Increased carbon dioxide in the atmosphere this year will exceed key trajectories for limiting warming to 1.5°C, Britain's Met Office predicted Friday, with researchers reaffirming that that only "drastic" emissions cuts ...

A path to achieve a net-zero greenhouse gas economy

Anew report co-authored by 68 scientists from more than a dozen institutions—including the University of Pennsylvania—offers a first-of-its-kind high-resolution assessment of carbon dioxide (CO2) removal (CDR) in the ...

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