Read the text on climate change and think of a word which best fits into each blank . Use only ONE word for each space !

Global Warming or Global Cooling

Scientists have been constantly warning us that the earth is turning some kind of gigantic greenhouse and in the future there be a rise in temperatures everywhere. But other scientists disagree. They say that certain of the earth are not to get warmer but are going to cooler. Global cooling over parts of Europe probably be greater global warming.

The reason is simple: clouds. Warmer temperatures will more water evaporate and will lead to more clouds. These clouds will shade the earth the sun, leading to cooler temperatures the day. Ecologists, however, insist that global warming will continue, in of increased cloudiness - and it not going to be a good thing.