Does the greenhouse effect affect global warming?

Global Warming is a serous issue weather it be man made or natural. The Greenhouse effect and Global Warming are basically the same thing. When you drive your car or when leaves fall to the ground and decay they release a gas compound call Co2. The Co2 thickens the atmosphere letting less and less of the suns light energy escape back into space. A greenhouse works much like this but it insted of gases it uses glass the trap the suns energy.