If every climate change candidate you favored for won in the US and Canada the impact on climate would be near zero. Why? Because China, Vietnam, India and Indonesia are now the majority contributors to emissions and they don't care about your agenda.
Such are the unintended consequences of progressive agendas. We regulated 'dirty' businesses out of existence (mostly) in North America and in so doing gave up our influence over how those industries operate.
And, no, we cannot coerce compliance via tariffs or sanctions. You cannot manufacture drugs, chemicals, electronics and other critical societal goods today without inputs from polluting countries.
The lack of dimensionality in progressive political agendas is disheartening and dangerous.