A brief history of climate change

1.-Explain, briefly, what Greenhouse effect gases are and how they produce climate change.
Greenhouse effect augmented the temperture of Earth, like a greenhouse, because augmented heat in the state non-luminous heat.
2.-What kind of fossil fuels can you name?
Oil, coal, carbon, gas and petroleum.
3.-In what year did carbon emissions reach one billion tonnes per year?
In 1927
4.-Express in a chart (time, population) the world’s population growth since 1800.