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In 2015, the historic Paris Agreement, signed by 195 countries, sought to limit global warming to 2 °C. Ten years later, the results have yet to materialize, raising questions regarding the effectiveness of COP meetings, major climate gatherings whose thirtieth edition kicks off Monday in Brazil.
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White dwarfs are the extremely dense, compact remnants of stars that have ended their lives, and are at the origin of tremendous explosions known as novae. This phenomenon (not to be confused with...