Task 1 Read the words and their definitions. Try to guess what the text is going to be about.
➔ ice sheet
a thick layer of ice covering a large area of land for a long period of time
➔ glacier
very large, slow-moving mass of ice
➔ in balance
having different parts or elements arranged in the correct proportions
➔ tipping point
time at which a change or an effect cannot be stopped
➔ rate
speed at which something happens or changes
➔ throw your hands up
(idiom) show frustration and despair when a situation becomes so bad that you
give up
Have you guessed the topic?