United States President Donald Trump has signed decrees that include the country’s withdrawal from the Paris Climate Agreement, a decision that could have significant consequences for global efforts to combat climate change.
The US withdrawal from the agreement, which should be completed within a year, represents a setback in the fight against global warming.
According to the senior international analyst at CNN Américo Martins, the United States, being the largest economy in the world and historically one of the biggest polluters, has a crucial role in this scenario.
“Domino” effect and weakening of the agreement
For Américo, the American decision could trigger a “domino effect”, leading other countries to also abandon the agreement or reduce their engagement.
This is particularly worrying in the current context, where the planet is facing record temperatures and increasingly frequent extreme weather events.
In 2024, for the first time, the world recorded an average temperature 1.5°C above pre-industrial levels, a limit established by the Paris Agreement itself as critical to avoid catastrophic climate impacts.
Global impacts and challenges for Brazil
The US exit also affects Brazil’s plans, which will host COP30 in Belém.
The absence of the American federal government as an ally in this conflict increases pressure on Brazil and other countries to adopt tougher measures to combat global warming.
While some US states and companies promise to remain engaged in the fight against climate change, the lack of support from the US federal government makes the challenge significantly greater.
This comes at a critical time, when global warming is already showing its devastating effects in several parts of the world, including droughts in the Amazon and floods in southern Brazil.
The international community now faces the challenge of maintaining the fight against climate change, even without the participation of the world’s largest economy.
This content was originally published in Analysis: US withdrawal from the Paris agreement could generate “domino effect” on the CNN Brasil website.
Source: CNN Brasil

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