In the past a hundred years, people have been using fossil fuels and releasing a huge amount of greenhouse gasses into the atmosphere. Heat and sunlight were blocked inside the atmosphere. The forests were also shrinking at an astonishing rate because of the increasing demand for wood, and wild animals went extinct as time passed. Pollution was another reason that makes the earth uninhabitable for human beings. Algaes provides people with at least 50% of oxygen on earth, absorbing huge amounts of carbon dioxide. However, while human beings were exploiting fossil fuels, they were discharging tons of dirty water with nitrides into the rivers. Fish were killed by those chemicals, and while the pollutants were carried to the ocean, they caused a red tide, depleting oxygen in the ocean, killing different organisms and breaking the food chain. The global temperature was rising constantly. The sea level rose quickly, submerging the coastal area and some cities including New York and ShangHai were not suitable for people to live anymore. However, as the temperature continued rising, the sea was losing its water because of evaporation. The water was locked in the air since the earth is not cold enough to liquefact those vapors. Water began to enter the atmosphere until the relative humidity of the atmosphere raise to 100% in some areas, and this could seriously affect the ecosystem and the climate. Atmospheric circulation and ocean currents would not exist, and the atmosphere would become similar to that of Venus: it would become denser, heavier and a lot more water. Plants will be seriously affected. Although a relatively high humidity (8% to 26%) will stimulate photosynthesis, transpiration would not work efficiently and leaves could not get access to enough water. What’s more, there might be a huge storm around the globe especially when the air is much heavier, they could not be stopped easily. Anyway, most man-made objects and even natural scenery would not be able to survive under the harsh environment. They would be eroded by the wind or water, and the world would be a foggy desert. People had to escape from the humidity, the high temperature and they had to find enough food and water especially when most natural resources were removed from the earth.[4][5] Climate: Tropical rainforest for most places Temperate continental climate in north pole and south pole since it is much cooler (hopefully, there might be rain).