Joe Biden has put forth the most ambitious climate plan of any U.S. presidential candidate in history — promising, among other things, to get the country to 100 percent clean electricity generation by 2035 and to invest $400 billion in clean energy innovation and technology over 10 years. That said, for climate activists, it’s not quite a dream come true.

The plan was knitted together in consultation with representatives from various diverse corners of the economic, political, and climate advocacy worlds. While every part of this coalition is invested in the Democratic candidate’s vision, some want to see the country move more quickly toward renewables, while others think it’s more important to conserve and create jobs, and still others are more concerned with political feasibility than anything else.

Even if the former vice president wins the presidency, the plan will still require a dedicated team to execute. Here’s a guide to the people who’ll be jockeying for influence on climate policy come January 2021, should things go Biden’s way: