US, Canada to hold climate talks, paving road to Biden's Earth Day summit "U.S. leadership has been sorely missed over the past years", Trudeau said, adding it was "nice when the Americans are not pulling out all references to climate change and instead adding them". "Three years later, three years wasted. Around 2030 is the date in which we have to get the world now on the right path in order to cap the warming at that level of 1.5 [degrees Celsius]. So we are absolutely, clearly, without question inside the decisive decade ... it's what people will do in the next 10 years that matter". 45's administration dismantled several key environmental policies, including protection for clean water and clean air, as well as regulating fuel efficiency standards.