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Global warming and its negative effects on the environment

  1. Agriculture can also be disrupted by wildfires and changes in seasonal periodicity, which is already taking place, and changes to grasslands and water supplies could impact grazing and welfare of domestic livestock.
  2. Developing countries, some of which are already embroiled in military conflict, may be drawn into larger and more protracted disputes over water, energy supplies or food, all of which may disrupt economic growth at a time when developing countries are beset by more egregious manifestations of climate change. Markets would endure increased volatility and institutional investors such as pension funds and insurance companies would experience considerable difficulty.
  3. Agriculture While CO2 is essential for plant growth, all agriculture depends also on steady water supplies, and climate change is likely to disrupt those supplies through floods and droughts. Forest Service Tens of millions of trees have died in the Rocky Mountains over the past 15 years, victims of a climate-driven triple assault of tree-killing insects, wildfires, and stress from heat and drought.
  4. One of the most significant potential mechanisms is a shift in an ocean circulation pattern known as thermohaline circulation, which would have widespread consequences for Europe and the U. Vegetation and soils dry out earlier, setting the stage for longer and more damaging wildfire seasons.
  5. Very heavy precipitation events, defined as the heaviest one percent of storms, now drop 67 percent more precipitation in the Northeast, 31 percent more in the Midwest and 15 percent more in the Great Plains than they did 50 years ago. It is widely accepted that the detrimental effects of climate change will be visited largely on the countries least equipped to adapt, socially or economically.

It's not bad "Two thousand years of published human histories say that warm periods were good for people. It was the harsh, unstable Dark Ages and Little Ice Age that brought bigger storms, untimely frost, widespread famine and plagues of disease.

Climate Science Glossary

Agriculture While CO2 is essential for plant growth, all agriculture depends also on steady water supplies, and climate change is likely to disrupt those supplies through floods and droughts. It has been suggested that higher latitudes — Siberia, for example — may become productive due to global warming, but the soil in Arctic and bordering territories is very poor, and the amount of sunlight reaching the ground in summer will not change because it is governed by the tilt of the earth.

Agriculture can also be disrupted by wildfires and changes in seasonal periodicity, which is already taking place, and changes to grasslands and water supplies could impact grazing and welfare of domestic livestock.

Increased warming may also have a greater effect on countries whose climate is already near or at a temperature limit over which yields reduce or crops fail — in the tropics or sub-Sahara, for example. Health Warmer winters would mean fewer deaths, particularly among vulnerable groups like the aged.

  1. The resulting dry conditions will increase the pressure on groundwater supplies as more is pumped to meet demand even as less precipitation falls to replenish it. Disruptions to global trade, transport, energy supplies and labour markets, banking and finance, investment and insurance, would all wreak havoc on the stability of both developed and developing nations.
  2. All of these changes pose serious, and costly, risks to public health.
  3. We Need Your Support to Make Change Happen We can reduce global warming emissions and ensure communities have the resources they need to withstand the effects of climate change—but not without you.
  4. Destruction of coral reefs Photo.
  5. One of the most significant potential mechanisms is a shift in an ocean circulation pattern known as thermohaline circulation, which would have widespread consequences for Europe and the U. Markets would endure increased volatility and institutional investors such as pension funds and insurance companies would experience considerable difficulty.

However, the same groups are also vulnerable to additional heat, and deaths attributable to heatwaves are expected to be approximately five times as great as winter deaths prevented. Polar Melting While the opening of a year-round ice free Arctic passage between the Atlantic and Pacific oceans would confer some commercial benefits, these are considerably outweighed by the negatives. Detrimental effects include loss of polar bear habitat and increased mobile ice hazards to shipping.

  • The loss of ice albedo the reflection of heat , causing the ocean to absorb more heat, is also a positive feedback; the warming waters increase glacier and Greenland ice cap melt, as well as raising the temperature of Arctic tundra, which then releases methane, a very potent greenhouse gas methane is also released from the sea-bed, where it is trapped in ice-crystals called clathrates;
  • Heavier precipitation and flooding Photo;
  • Polar Melting While the opening of a year-round ice free Arctic passage between the Atlantic and Pacific oceans would confer some commercial benefits, these are considerably outweighed by the negatives.

The loss of ice albedo the reflection of heatcausing the ocean to absorb more heat, is also a positive feedback; the warming waters increase glacier and Greenland ice cap melt, as well as raising the temperature of Arctic tundra, which then releases methane, a very potent greenhouse gas methane is also released from the sea-bed, where it is trapped in ice-crystals called clathrates. Melting of the Antarctic ice shelves is predicted to add further to sea-level rise with no benefits accruing.

  • Agriculture While CO2 is essential for plant growth, all agriculture depends also on steady water supplies, and climate change is likely to disrupt those supplies through floods and droughts;
  • Global warming has the potential to seriously disrupt our food supply, drive costs upward, and affect everything from coffee to cattle , from staple food crops to the garden in your backyard;
  • Growing risks to our electricity supply Photo;
  • Disruptions to food supplies Photo;
  • However, the same groups are also vulnerable to additional heat, and deaths attributable to heatwaves are expected to be approximately five times as great as winter deaths prevented;
  • Vegetation and soils dry out earlier, setting the stage for longer and more damaging wildfire seasons.

Ocean Acidification A cause for considerable concern, there appear to be no benefits to the change in pH of the oceans. This process is caused by additional CO2 being absorbed in the water, and may have severe destabilising effects on the entire oceanic food-chain. Sea Level Rise Many parts of the world are low-lying and will be severely affected by modest sea rises.

Global Warming Impacts

Rice paddies are being inundated with salt water, which destroys the crops. Seawater is contaminating rivers as it mixes with fresh water further upstream, and aquifers are becoming polluted. Given that the IPCC did not include melt-water from the Greenland and Antarctic ice-caps due to uncertainties at that time, estimates of sea-level rise are feared to considerably underestimate the scale of the problem.

  • Rice paddies are being inundated with salt water, which destroys the crops;
  • Destruction of coral reefs Photo;
  • NOAA As global temperatures rise, so too do average sea surface temperatures;
  • Your generous support helps develop science-based solutions for a healthy, safe, and sustainable future;
  • As temperatures have warmed, the prevalence and duration of drought has increased in the western U.

There are no proposed benefits to sea-level rise. Environmental Positive effects of climate change may include greener rainforests and enhanced plant growth in the Amazon, increased vegitation in northern latitudes and possible increases in plankton biomass in some parts of the ocean.

Negative responses may include further growth of oxygen poor ocean zones, contamination or exhaustion of fresh water, increased incidence of natural fires, extensive vegetation die-off due to droughts, increased risk of coral extinction, decline in global photoplankton, changes in migration patterns of birds and animals, changes in seasonal periodicity, disruption to food chains and species loss.

Effects on People and the Environment

Economic The economic impacts of climate change may be catastrophic, while there have been very few benefits projected at all. The Stern report made clear the overall pattern of economic distress, and while the specific numbers may be contested, the costs of climate change were far in excess of the costs of preventing it.

Term Lookup

Certain scenarios projected in the IPCC AR4 report would witness massive migration as low-lying countries were flooded. Disruptions to global trade, transport, energy supplies and labour markets, banking and finance, investment and insurance, would all wreak havoc on the stability of both developed and developing nations.

Markets would endure increased volatility and institutional investors such as pension funds and insurance companies would experience considerable difficulty.

Developing countries, some of which are already embroiled in military conflict, may be drawn into larger and more protracted disputes over water, energy supplies or food, all of which may disrupt economic growth at a time when developing countries are beset by more egregious manifestations of climate change. It is widely accepted that the detrimental effects of climate change will be visited largely on the countries least equipped to adapt, socially or economically.