average efficiency in the use of irrigated water in agriculture may be as low as 50%. Simple changes could improve the rate substantially, though it is unrealistic to expect very high levels of water-use efficiency in many developing countries, faced ...
Insufficient freshwater resources have become one of the major crises in many countries, both wealthy and poor. This essay will analyze some potential reasons for this and offer possible solutions to it. The challenge of population growth has caused increasing water demand worldwide. The world's p...
2. 个人的过度使用可能导致水资源的浪费和枯竭(Individuals' excessive use may lead to water waste and depletion);e.g. 水危机(water crisis)、环境保护(environmental conservation) 3. 政府的干预可以确保公平的水资源分配和可持续利用(Government intervention can ensure equitable water distribution and sustainabl...
But before desalination can make a real difference solving in the looming water crisis, officials and experts need to commit to overcoming obstacles that make the process expensive and inefficient, a new paper argues. Scientists predict that by 2016, the amount of fresh water produced by desalinati...
In October, the World Conservation Union (also known as the IUCN) published its updated Red List of Threatened Species, a roll call of 11,167 creatures facing extinction – 121 more than when the list was last published in 2000. But the new figures almost certainly underestimate the crisis....
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Are there effective solutions to the food crisis? The good news is that innovation in agriculture is coming to rescue. Up-to-date information science and technology, improved communication systems, robotics, drones and other new inventions have the likelihood to boost agricultural yields and reduce ...
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IELTS Writing Task 2/ IELTS Essay: You should spend about40minutes on this task. Damage to the environment is an inevitable consequence of worldwide improvements in the standard of living. To what extent do you agree or disagree? Give reasons for your an...
BMeasures already taken to avoid a crisis are probably sufficient. CThe situation is now so severe that there is no likely solution. DIt is no longer clear which measures would be most effective. Show workspace Questions 9-14 Complete the summary using the list of words/phrases,A-J, below...