Biden’s big climate pledge: can it succeed, and what noticeable changes could it bring?

The administration has pledged to cut US emissions by half by 2030, one of the most ambitious goals for a developed country

Joe Biden has closed out a two-day climate summit of more than 40 world leaders by warning that the planet risks reaching the “point of no return” if more isn’t done to escalate efforts to constrain the climate crisis.

Biden, along with several other national leaders, made a number of new promises in the summit. Here’s what it all means.

Related: Biden vows to slash US emissions by half to meet ‘existential crisis of our time’