The atmosphere and clouds can both refract and absorb part of the sunlight  About half of the solar energy that illuminates the earth is absorbed by the land and water on the earth's surface  This thermal energy value is very huge  It can be concluded that the earth will gradually heat up and melt
However, fortunately there is a factor that can counteract this effect, namely
Through monsoons and ocean currents, the heat of the earth's equator spreads towards the poles.