What organizations are stopping global warming?

Answer 1

There are none. There are a few private, non profit groups distributing information about the consequences of human induced climate change, and various governments have made switching to renewable alternatives a greater priority, but no one is really stopping greenhouse gas emissions.

The United States and Germany have both reduced overall greenhouse gas emissions in the past few years. Most other industrial nations, including China and India, continue to expand their emission rates.

Even if we stopped 100% of our carbon dioxide emissions today, the lingering effects of what we have already would continue exerting influence for centuries to come. What we can hope for is not stopping global warming so much as slowing down the inevitable consequences of it. So far, even that is problematic, in that too few of the people with the power to make effective change are not interested in doing so.