If your poorly constructed argument were correct, then the Earth's temperature would be increasing year upon year. However it is not, as the warmest year in recent records is 1998. We know from the fossil record that increased carbon dioxide levels are a response to global warming, not a driver
A more complete accounting of the energy balance of the Earth's geosystems includes not only the atmosphere but the oceans, land and biosphere. Natural variation will affect how energy is distributed between those areas. So even though surface atmospheric temperature may not be rising as steeply lately (and choosing 1998 is an extreme cherry pick) the oceans (where over 90% of the energy from global warming goes) have continued to warm up. Given the different heat capacity between air and water it doesn't take much of a change in ocean warming to have a major effect on atmospheric warming.