Will the production of crops be increased or decreased due to global warming?

Answer 1

They'll have to be more farming to satisfy 1/10th of what politicians are pushing for.

Then we need to think about the food chain. A hamburg will cost a week's pay. What do you think cows eat...what about chickens, not to mention ingredient for bread, and cereals.

What's been done in twisting the truth is like casting feathers from a mountain top. How will we ever recover from the lies taken as facts, in return for financial gain of a few "Inconvenient A**holes".

Answer 2

Increase, History clearly shows that in a warmer environment crop production increases dramatically. also as the co2 rises this will "feed" the plants quite well as well. If you look back on history during the little ice age 1200-1820, crop production was very poor, people starved by the
thousands, in the past 20 years as the planet has warmed by about 1/2 of 1 degree, the production has soared.

Answer 3

Different crops grow better in different conditions. For some a warmer and wetter climate will lead to an increased yield but for others the yield will decrease.

In some places it will be possible to plant alternative crops, in other it will be possible to plant crops where previously nothing could be grown.

Unless we change agricultural practices, which is possible, then there will be a net decrease. The areas that will be hardest hit are countries in Africa and Asia where growing conditions are already difficult and there is no viable alternative. In some places crop production has already fallen by about 10% and will continue falling by up to 50%.

In the temperate zones such as Europe and North America we can simply plant different crops.

Answer 4

Mostly decreased, but increased in a few places, like Canada.

One problem is that all plants don't react to increased CO2 the same way. There will be winners and losers among plants.

One winner will be poison ivy, which is particularly fond of CO2.

http://news.nationalgeographic.com/news/2006/05/060530-warming.html

We're conducting a giant uncontrolled experiment of the environment of Earth. We should reduce it to the extent we can.

ATTENTION TREVOR You've made a (rare) large mistake. Crops and farms are highly specialized for where certain crops grow right now. Changing that around will not be simple. Among other things, we'll need hundreds of billions of dollars of new irrigation systems, and quite likely some new dams and reservoirs.

Answer 5

this is a really good question FOR A CHANGE
obviosly there will be areas that are affected negatively, but what about changing weather patterns bringing rain to previously draught ridden areas. clearly the water will be warmer globally which means more rain. Flooding Has become a problem but people have been morons to build on flood plains when they know the results

The laws of physics dont change so warmer ocean water must evaporate and it must condense again so it may land where it hasn't before on a regular basis. giving us vast new areas of aerable land. a possibility at least

Answer 6

Just looking at a globe or map, it looks like there will actually be more land suitable for farming in Canada and Siberia when the warm bands shift towards the poles. That may even be true in Africa since the desert regions aren't good for anything that I know of either.

Another reason for answering in the affirmative, albeit from another angle: more forests and woodlands are being leveled and turned into agricultural land for the express purpose of growing crops such as feed corn, switch grass, sugar cane and soybeans, amongst others, for the purpose of manufacturing "biofuels", which are supposedly more benefical to the environment than fossil fuel.

Answer 7

well , it depends upon the country . Some countries are at the risk of disappearing under water.... of course they will decrease. However , in countries such as Finland, people are able to cultivate mais for the first time... In general, as more land will disappear , I believe that the production of crops will decrease ( less rainfall in african countries, more harsh weather destroying the crops ...) But that's just my oppinion

Answer 8

All depends on: 1. how much the surface temperature rises, 2.over how long a period of time to reach a subject temperature, 3. how long that temperature remains, 4. and, what crops are you concerned about ??
At the current rate of temperature elevational levels, PLANTS WILL ADAPT TO THIS AMOUNT OF TEMPERATURE CHANGE EASILY, AND IN FACT, THERE ARE MILLIONS OF PLANTS THAT HAVE ADAPTED AND STILL SURVIVE, TODAY, IN SPITE OF THE NATURAL- NATURAL TEMPERATURE CHANGES THAT HAS OCCURED, BY THE THOUSANDS, OVER THE PAST 4,000,000,000 ( 4 BILLION) YEARS.
Uncle Wil

Answer 9

Both! Some areas will be able to grow more due to climate changes, some will be able to grow less. Also, the types of crops grown in different areas will change. I am more concerned about all of the farmland being replaced by huge housing complexes.

Answer 10

It depends on where you live and how the climate is changing there. Where crops are grown will be changed according to the warming or cooling, flooding or drying of the area.