Carbon dioxide caused by human activity is not causing global warming. Period. It's all a lie, all a scam. The increase in carbon dioxide production that we see mainly in China and India, from their coal-fired electric-generating plants, is helping the ecosystem, not hurting it. How can this be, you ask? It's because we've been starved for CO2 for thousands of years. We need more carbon dioxide in the air than we have now. It will not cause global warming, but it will make trees taller and stronger, expand grasslands, shrink deserts, and most important from our perspective, increase food crop yields. This is reality. The excess CO2 being generated by India and China is feeding millions of people who would otherwise have starved.