At a time when climate leadership from the federal government is decidedly lacking, today’s launch of Walmart’s Project Gigaton is a cause for celebration. It is proof that companies can step up to advance solutions that will help business, people and nature thrive.

Just like Walmart itself, this is big.

The world’s largest retailer has launched an initiative to remove 1 gigaton (that’s 1 billion tons — billion with a B) of greenhouse gas emissions (GHG) from its supply chain by 2030. To put that in perspective, that is the equivalent of removing the annual emissions of Germany — the world’s fourth-largest economy — from the atmosphere. This audacious goal is impressive; it’s corporate America’s "moonshot," and it shows real leadership.