Global Warming In Need of Attention

I cannot understand how some people believe that humanity is not causing global warming, unless they have been fooled by somebody they trust. Every flame we humans light adds to the heat in the earth's atmosphere. And with billions of people lighting flames every day and every minute, there is a lot of heat going into the air that would not be added to our atmosphere if we humans were not here to light those flames.

A little closer to home, most people do not realize that as they drive their car down the road, what powers that motion is the energy generated by tens of thousands of little flames in the engine. Some of the heat that is not powering your vehicle, however, comes out the tail pipe into the air and even more is radiated into the atmosphere by the radiator or by the fins an air-cooled engine.

All of the heat I speak of here is manmade, and it comes from billions of seemingly small sources, but the numbers do add up - along with all the carbon we're adding to our atmosphere.

Considering this, how can any sentient human being deny that humans are adding to global warming, even if we are not the only cause?

Smaller, more fuel-efficient cars will warm the atmosphere slower and add less carbon to our atmosphere.