Who Will Invade Brazil to Save the Amazon?

Aug. 5, 2025: In a televised address to the nation, U.S. President Gavin Newsom announced that he had given Brazil a one-week ultimatum to cease destructive deforestation activities in the Amazon rainforest. If Brazil did not comply, the president warned, he would order a naval blockade of Brazilian ports and airstrikes against critical Brazilian infrastructure. The president's decision came in the aftermath of a new United Nations report cataloging the catastrophic global effects of continued rainforest destruction, which warned of a critical "tipping point" that, if reached, would trigger a rapid acceleration of global warming. Although China has stated that it would veto any U.N. Security Council resolution authorizing the use of force against Brazil, the president said that a large "coalition of concerned states" was prepared to support U.S. action. At the same time, Newsom said the United States and other countries were willing to negotiate a compensation package to mitigate the costs to Brazil for protecting the rainforest, but only if it first ceased its current efforts to accelerate development.

The above scenario is obviously far-fetched—at least I think it is—but how far would you go to prevent irreversible environmental damage? In particular, do states have the right—or even the obligation—to intervene in a foreign country in order to prevent it from causing irreversible and possibly catastrophic harm to the environment?...