That's true, but it's worth noting that US emissions haven't really substantially dropped. Meanwhile, much of the global emissions are a result of consumption in the west. Having farmed out much of the industry to the Global South, the west has reduced its domestic emissions, but it's still responsible for much of the emissions in other countries indirectly. Finally, it's important to note that the trade war with China that Biden is pursuing has a direct negative impact on proliferation of clean tech like EVs and solar panels around the world.