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There is no evidence that global warming would have any significant affect on the overall food supply. If warming becomes a real issue local variation of crops may be a valid response.

The political spectrum will naturally disagree. The United Nations makes several claims that widespread drought and an increase in storms could cause production issues. The truth is something that time will tell.

A:It is difficult to predict the future, but in 2001 the United Nations InterGovernmental Panel on Climate Change (IPPC) issued a Report: Climate Change 2001: Working Group II: Impacts, Adaptation and Vulnerability.

Here are some of the suggested impacts:

  • Climate change will affect crop yields and irrigation demands.
  • Water Resources will be affected: water supply, quality and competition for water.
  • Moderately warmer weather and increased CO2 in the atmosphere may help some crop growth (up 30% in the case of rice, soy and wheat), but with increased temperatures the grain yield drops 10% for every 1˚C rise above 26˚C.
  • Agricultural areas may suffer erosion from increased wind and water from short term changes in weather.
  • The growth of agricultural pests (weeds, insects and pathogens) under climate change is being studied with varying results. For example, higher temperatures increase the severity of rice leaf blast epidemics in cool subtropical zones, but in warm humid subtropics higher temperatures lower the severity of the epidemics.
  • Farm animals are affected by warmer temperatures, influencing their performances in growth, milk and wool production, reproduction, health and well-being.
  • Increased temperatures may lead to increased demand for water from agriculture and wildlife, including farm livestock. It may also lead to reduced water availability.
  • Adaption costs for agriculture, including retraining farmers for new practices, as well as the provision of new irrigation may be considerable.
  • The cost of basic food will rise, especially with temperature rises of more than 2.5˚C, as agriculture will not be able to absorb increased costs.
  • "Africa is projected to experience marked reductions in yield, decreases in production, and increases in the risk of hunger as a result of climate change."
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Does global warming affect food land or the economy?

Global warming can affect the supply of food and the quality of the land. Global warming can increase the frequency of disasters such as hurricanes and drought. The economy eventually goes into recess if the country relied on agriculture for a great percentage of the income.


Why do people think that global warming is good?

Some people imagine that global warming simply means slightly warmer winters and milder summers, overlooking the fact that if average temperatures rise around the globe, some areas will experience much higher temperatures, but other areas may even become colder. Some people imagine that global warming means higher food production will be possible, ignoring the fact that more prolonged droughts will reduce the food production in some areas, as will more frequent severe floods in other areas. People who think that global warming is good look to what they imagine to be the advantages of global warming, but overlook, or are unaware of, the harm that it can cause.


Why does food cause global warming?

Food production contributes to global warming through processes like deforestation, transportation emissions, and methane release from livestock. Clearing land for agriculture reduces carbon sinks, while transportation of food over long distances increases greenhouse gas emissions. Livestock farming, particularly cows, produce methane which is a potent greenhouse gas.


What is global warming and how does the production of food contribute to it?

Global warming is the rising temperature all over the world, caused largely by the burning of coal oil and natural gas (the fossil fuels), which puts carbon dioxide into the atmosphere. Carbon dioxide is a greenhouse gas, and extra carbon is causing global warming. Most food has a carbon footprint. This means that the production, transport and even cooking release some carbon emissions. If you eat apples that are grown on the other side of the world, that apple has a global footprint from all the water and fertilizer used to grow it and transport that carried it from its tree to your mouth. If you eat an apple that grew in your garden then its carbon footprint is very small (fertilizer, water), or even neutral.


How has global warming afected to food chain of polar bears?

Global warming affects the food chain by creating scarcity in certain parts of the food chain. This scarcity has an effect on all other parts food chain system. Scarcity in one part of the food chain affects the entire food system.

Related Questions

Has a panda habitat been affected by global warming?

yes the pandas food (bamboo) is dieing because of global warming


Does global warming affect food land or the economy?

Global warming can affect the supply of food and the quality of the land. Global warming can increase the frequency of disasters such as hurricanes and drought. The economy eventually goes into recess if the country relied on agriculture for a great percentage of the income.


What are the problems of the worlds food supply?

Global warming may affect globai food production, the overuse of pesticides which is said to be killing all the bees will affect plant pollination.


What are examples of problems with the world's food supplies?

Global warming may affect globai food production, the overuse of pesticides which is said to be killing all the bees will affect plant pollination.


What effect causing global warming from too much carbon dioxide in the atmosphere?

Global warming catastrophically reduce mankindes bility to grow food, destroy or severely damage wildlife and wildernass, raise sea levels and thereby flood coastal areas and farmland.


How transporting food from far off countries can cause damage to the environment?

the planes and ships that the food is being transported on give of lots of pollution which is bad for the enviroment because it causes global warming


What is the definition of the term food miles?

Food miles is a term which refers to the distance food is transported from the time of its production until it reaches the consumer. Food miles are one factor used when assessing the environmental impact of food, including the impact on global warming


Why do people think that global warming is good?

Some people imagine that global warming simply means slightly warmer winters and milder summers, overlooking the fact that if average temperatures rise around the globe, some areas will experience much higher temperatures, but other areas may even become colder. Some people imagine that global warming means higher food production will be possible, ignoring the fact that more prolonged droughts will reduce the food production in some areas, as will more frequent severe floods in other areas. People who think that global warming is good look to what they imagine to be the advantages of global warming, but overlook, or are unaware of, the harm that it can cause.


How will food availability change with global warming?

Climate modelling indicates that with increased global warming, some areas of the world will experience more prolonged droughts, while others will experience more frquent floods. Both droughts and floods will limit food production. Severe storms can also damage crops before they can be harvested. An example of these effects is the Queensland, Australia banana crop, which was almost entirely destroyed in 2009 by an intense hurricane, then destroyed again by record flooding in 2010.


Why does food cause global warming?

Food production contributes to global warming through processes like deforestation, transportation emissions, and methane release from livestock. Clearing land for agriculture reduces carbon sinks, while transportation of food over long distances increases greenhouse gas emissions. Livestock farming, particularly cows, produce methane which is a potent greenhouse gas.


Why do animals kill from global warming?

Global warming may change local climate and natural balance in some parts of the earth. Some animals can not survive the change in their environment. Animals will not kill as a response to global warming. Animals kills for food or territorial reasons.


What is global warming and how does the production of food contribute to it?

Global warming is the rising temperature all over the world, caused largely by the burning of coal oil and natural gas (the fossil fuels), which puts carbon dioxide into the atmosphere. Carbon dioxide is a greenhouse gas, and extra carbon is causing global warming. Most food has a carbon footprint. This means that the production, transport and even cooking release some carbon emissions. If you eat apples that are grown on the other side of the world, that apple has a global footprint from all the water and fertilizer used to grow it and transport that carried it from its tree to your mouth. If you eat an apple that grew in your garden then its carbon footprint is very small (fertilizer, water), or even neutral.