Final answer:
At COP26, 123 countries signed a pledge confirming the relationship between climate change and the need for adaptation, mitigation, and conservation efforts. The Paris Climate Agreement represents an international commitment to limit CO₂ emissions and resolve environmental challenges collectively.
Step-by-step explanation:
The question refers to the pledges made by various countries acknowledging the connection between climate change and their commitments to mitigate its effects. At the COP26 summit, governments pledged to commit to adaptation, mitigation, and conservation efforts addressing various aspects such as methane, coal, transportation, and deforestation. These efforts aim to prevent global warming from exceeding 1.5°C above pre-industrial levels.
The Paris Climate Agreement, a key result of international collaboration from the Durban climate conference in 2011, signifies the efforts of both rich and poor countries to come together to limit CO₂ emissions and address global environmental spillovers. While the United States initially backed out under the Trump administration, it rejoined under President Biden, underscoring the oscillating political support for global climate accords.