What are the arguments against global warming / climate change?

even if the person you're handing the report into doesn't believe global warming is happening, your report is still going to suck going by the reasons you listed. First, there is evidence. Second, you say the world is actually cooling (which is actually false), but if you take that as fact you go on to say that Mars is also warming, which implies that earth is warming too, so therefore the argument you made that earth is actually cooling is completely void. Try to find sources that support your argument that actually reference their evidence...you won't find any! Good Luck!