Two problems caused by the creation of a weak national government

Which factors add to the greenhouse effect and are caused by human activities?

There is only one climate type in motion across the world at a time

If we represent the solar system on a scale that allows us to walk from the sun to pluto in a few minutes, then a) the planets are microscopic and the stars are millions of miles away. b) the planets are the size of basketballs and the nearest stars are a few miles away. c) the planets are marble size or smaller and the nearest stars are thousands of miles away.