How Much Energy Would We Need to Block Out the Sun to Cancel Out Climate Change?

To get that level of accuracy, you need to be within 5% of the distance change. We're just going to move the earth one and a half giga meters within 77 megameters. So we would have compared to our current orbit, 97.9% of the heat from the sun,. which means it's a roughly 2% drop, 2.1%. Isn't that good? Well, I couldn't find any research in to say how much we would need to block out the sun to cancel out climate change.