一半的食物被浪费 - 英语听力
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[00:00.100] The world has limited resources and a growing population.
[00:04.211] By the end of this century there could be three billion extra mouths to feed.
[00:09.056] So wasting food, this new report says, is a tragedy that should not continue.
[00:14.563] The study says changing the way consumers in the rich world reject less-than-perfect-looking vegetables in the shops, and eat large quantities of meat, which requires a lot of resources to bring to market, could have an impact.
[00:28.408] But the engineers who wrote this report also recommend better use of scarce land and water around the whole world.
[00:36.473] They say that putting more land to agriculture will be difficult without damaging the environment, so improving the efficiency of farming is vital.
[00:46.084] The report says better irrigation is the key here, because water used in agriculture is often sourced badly, from aquifers which are poorly managed.
[00:55.953] In some cases, the engineers say, governments and aid agencies have exacerbated this problem by sinking boreholes in the wrong places.
[01:03.967] The report also says that irrigating crops through spraying or flooding fields is wasteful because so much of the water evaporates.
[01:12.276] It says that drip or trickle methods of irrigation, while more expensive to install, can be as much as a third more efficient.
[00:04.211] By the end of this century there could be three billion extra mouths to feed.
[00:09.056] So wasting food, this new report says, is a tragedy that should not continue.
[00:14.563] The study says changing the way consumers in the rich world reject less-than-perfect-looking vegetables in the shops, and eat large quantities of meat, which requires a lot of resources to bring to market, could have an impact.
[00:28.408] But the engineers who wrote this report also recommend better use of scarce land and water around the whole world.
[00:36.473] They say that putting more land to agriculture will be difficult without damaging the environment, so improving the efficiency of farming is vital.
[00:46.084] The report says better irrigation is the key here, because water used in agriculture is often sourced badly, from aquifers which are poorly managed.
[00:55.953] In some cases, the engineers say, governments and aid agencies have exacerbated this problem by sinking boreholes in the wrong places.
[01:03.967] The report also says that irrigating crops through spraying or flooding fields is wasteful because so much of the water evaporates.
[01:12.276] It says that drip or trickle methods of irrigation, while more expensive to install, can be as much as a third more efficient.
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