Do you like bananas? They taste good and you can have them without washing. However, British scientists say that the fruit may die out by 2050.
One reason for this is climate change. Scientists at the University of Exeter collected data(数据)from 27 countries that produce 86% of the world's bananas. They found that climate change made people harvest more bananas.
However, if temperatures keep going higher, this advantage will disappear. Some countries, like India, the world's biggest producer of bananas, will produce(生产)fewer bananas. By 2050, the fruit may die out.
Shouldn't bananas grow more easily if it's hotter outside? In fact, the perfect temperature for growing bananas is between 24℃ and 32℃. If temperatures get too high, they will stop growing.
Diseases are another danger to bananas. Unlike other crops, all banana plants have the same genotype(基因型). In other words, if a disease is able to kill one plant, it could kill them all.
One serious disease is called Panama. It spreads easily. It has spread across South Asia, Africa, Middle East, and Australia. If one banana plantation(种植园)develop the disease, it will take 30 years until it is able to grow bananas again. Scientists haven't found a good way to deal with this disease till now.
