It is a problem. For us. Maybe not the planet, but for us humans living on it.
No one claimed humans don't have a big impact on nature.
There is still no proof that we are the cause of the rising temperature, if the temperature is indeed rising. We don't even know for sure that it's the carbon dioxide that's causing it.Humans can have huge impacts and it doesn't surprise me that between all the deforestation and carbon dioxide emission, the Earth is getting hotter.