How can the greenhouse effect hurt agriculture?

Question

How can the greenhouse effect hurt agriculture, and also how can it help Canada and the former countries of the Soviet Union?

Answer 1

There will be more insect pressure as it warms up in the north. Insects that used to lay one brood a year will start laying 2 or 3 a year and warmer winters mean they will be able to migrate north. So the north will eventually have insects that winter used to keep south. This could also be bad for beneficial insects.

Warmer climate means that many fruit crops will be harder to grow because we will lose chill hours necessary for apples, cherries, cranberries, raspberries, strawberries, etc..

Warmer weather means more diseases on crops and likely new diseases

Warmer climate means more drought and far stronger storms

Answer 2

It dries up plants

Answer 3

The previous answers about shifting the areas where food can be grown are correct but there is more.

  The tropical environments arent very productive already becuse of the exhausted nutrients in the soil.

  The temperate zones are where most of the food is grown now BUT it's not just a matter of shifting those zones further north becuse of the glaciers in the past, the more northern soils are rocky and thin becuse the glaciers have scoured the earth away in the past.

  And as any good farmer knows, it's tough plowing rocks.

Answer 4

There will be a shift in where crops grow.  The north will warm up and grow more crops.  The tropics may turn into sand dunes.  Mush of the good farm land will be under water as the seas rise.  

Just a few things and there are many more.

Answer 5

it stuffs up the rain and the sun,, so basically we get rain then wont get any 4 weeks,, many plants die from lack fo water,, it also creates clay pans which also kills the plants. once the crop is harvested you dont want any moisture on it because well it creates moulds n all. It decreases the value of crops dramatically.

hope this helps

jess

Answer 6

As we raise the temperature of the world then the ice melts.  As the ice melts the oceans rise.  As the ocean rises the land shrinks.  As the land shrinks the people have to move inland.  As the people move inland there is less space to grow food.  As there is less space to grow food the people starve.  As the people starve they get mad.  As the people get mad they start to kill each other.  As they start to kill each other there is more room to grow food.  Problem solved.