President-Elect Joe Biden comes into office at a critical moment for many issues, but none more so than climate.  The size of his victory and the prominence of climate talk in the campaign means he has a mandate to act. Some compare the moment to Apollo 11 or the fall of the Berlin Wall as a watershed. There are many discussions of what he could do by executive order. There will be calls to stay with timid half measures. This is especially true since most down ballot candidates lost. Climate hawks need to stay in the political arena to demand robust action. How to do that? Grassroots activism to pressure your elected officials, from your Member of Congress to the White House will tell the tale. Join a climate group (like MCAN!) to keep our wins coming.