How to be rich

I know the topic is ridiculous but it's very important for me. I though if I can solve the Carbon Dioxide problem and save the world, I can get millions of money and I can become famous. However, I think I should think the other way to be rich because I do not know that much about Carbon Dioxide. However, I do some research already. The website said that those animals were already influenced by sea level. What happens if I can invent a super gigantic sponge to absorb water in the sea level. Also if I can invent a chemical way that sun light can completely turn into electricity. Sun light can only convert in 20 percent which is kind of useless. However, if I can change the world, I might do my best to solve it and earn money. Imagine the money pool with lots of blue thousand paper. My world can be changed by saving world.