Hello Earth boy good thing you arrived. Quick you have to help save us from the evils of global warming and CO2. You don't know what those are you say well if you dont know what those are here is a short description of both. To start off Global warming is the unhealthy warming of our planets surface it is mainly caused by green house gases and harmful chemicals. The second evil is Carbon Dioxide or CO2 but not necessarily what it is. By this I mean how Carbon Dioxide is something we naturally make and is what plants breathe however what makes it evil is when you burn Fossil Fuels it creates CO2 and when it is created it starts to fill the atmosphere with to much CO2. CO2 has to do with Global Warming because when to much CO2 begins to build up it starts to absorb sunlight and radiation and as more and more is collected it starts to warm the planet and if you dont save us soon all life on earth could be wiped out!
Your still confused about some historical information on CO2,and actions that you can do to save us from global warming. Well to start off it states"Beginning in the nineteenth century, scientists understood that carbon dioxide and a few other types of gases in the atmosphere affected energy in the Earth system. They took measurements of the air in the atmosphere and Earth’s temperature and found that global temperatures went up as the amount of carbon dioxide in the atmosphere increased. In 1896 a Swedish scientist named Svante Arrhenius(SVAN-tuh Ah-RAIN-ee-us) calculated that doubling the amount of carbon dioxide in the atmosphere would cause a temperature increase of 5 to 6 degrees Celsius (9 to 11 degrees Fahrenheit), while cutting the level of carbon dioxide in the atmosphere in half would be enough to cause a new ice age"! This shows how CO2 was in our history because it talks about how a scientist in 19th century studied CO2 and found out that doubling the amount of carbon dioxide in the atmosphere would cause a temperature increase of 5 to 6 degrees Celsius.
Now about how you can stop Global warming well Global Warming is a problem across the earth so In order for you to save us from our own demise you will need all the other people on earth to take part and to help in their own ways like using solar panels as an energy supplier,eat all of their food and to buy less meat,reduce water waste,and to turn off the light or water when you leave a room. This is a challenge for everyone and the only people who can save us are people regular people and one simple change like a healthier light bulb will help our planet greatly. Now go save our planet we are all counting on you!