To illustrate it, imagine placing mirrors that face each other. You can clearly see the mirrors reflecting back and forth. The same thing goes with the sunlight reflecting over and over with the earth and its atmosphere. At least, a smaller percentage of sunlight comes out, but it doesn't change the fact of how the rest of the sunlight stays inside.
This sunlight, heats the earth, causing a few impacts on earth. The most popular one is the melting of ice in the earth's ice caps. Earth's ice caps can melt due to global warming, and we all know what ice turns to when it melts.
it turns to, water
Water is then added to the world's ocean. Little by little, the sea level rises. According to research published in 2018, Antarctica has lost roughly 3 Trillion tons of its ice (Link to article: Click Here). For comparison, the average adult African bush elephant weighs around 9 tons.Â
This means in 25 years, the amount of ice lost is equal to 300 billion elephants. This also means that the earth gets 300 B elephants of water in the past 25 years, causing global sea levels to rise by 7.6 mm. It doesn't look like much, but it WILL get worse if it isn't stopped.
Fun fact, the reason Venus is so hot, is exactly what I just explained. The thick atmosphere on Venus traps sunlight, and the entire process of global warming occurs. This is why Venus is the hottest planet, not mercury, even though Mercury is closer to the sun than Venus is.
And, if you think it can't get any worse...
disclaimer, it DID get worse.
C. Look, it got even worse | Climate Change
Circumstances have changed -Silver, Sonic 2006
At this point, circumstances have indeed changed. For the weather, that is.