what are the effects of global warming?

Question

plz include effects in the future

Answer 1

Long answer coming up...

● EFFECTS ON WEATHER
An increase in the amount of precipitation. Although rainfall overall has increased there are some parts of the world that are receiving less rainfall and this trend is likely to continue.

Hurricanes and storms seem likely to become more frequent, widespread and severe, in the last 30 years the proportion of category 4 and 5 hurricanes has almost doubled. Once exclusively confined to the northern hemisphere there have recently been hurricanes in the southern hemisphere, most notably in Brazil.


● DESERTIFICATION
Shifting weather patterns mean some areas receive less rainfall; the ground becomes barren and unable to sustain crops. In many parts of the world the layer of topsoil is both very thin and very poor. The dry, dusty soil is readily blown away and the area becomes desert. African and Asian countries are particularly hard hit.


● AGRICULTURAL IMPACT
For the reasons mentioned above there will be a major impact on agriculture. Rising sea levels have already resulted in the loss of some agricultural land and this is progressively getting worse, the consequences of which will be population migration, famine and / or the need to import food from elsewhere. Again, it will be the African and Asian countries that are hardest hit with crop production falling by up to a third.


● RISING SEA LEVELS
Sea levels are rising faster now than at any time since the melting of the glaciers that marked the end of the period often referred to as the last ice age. As the glaciers melted sea levels rose by some 120 metres (400 feet) but for the past few thousand years sea levels have been almost constant rising only 10 centimetres (4 inches) per thousand years.

Since the onset of global warming the seas have risen much faster. A hundred years ago they were rising by 1mm a year, today they are rising by 3mm a year and indications are that they will rise much quicker in the future. Sea levels are rising 30 times faster now than they were before industrialisation and the onset of global warming.

The Sundarman Delta has seen levels rising by more than 30mm a year, thousands have already been forced to leave their homes and the Carteret Islands in the Pacific Ocean are currently being evacuated.

In the next few centuries rising sea levels could swamp cities including London, New York and Miami. Low lying areas such as Bangladesh, much of the European and American coasts and island groups including the Seychelles and Maldives would be submerged.


● MELTING OF ICE CAPS
The Arctic ice cap is floating; if it were to melt entirely there would be no change in sea levels. However, Antarctica is a continent, a land mass, it isn’t floating and any melting here adds to the sea level as does melting of ice sheets and glaciers in places such as Greenland.

The edges of the Antarctic Ice Sheet are breaking off and collapsing into the sea. One of the biggest breaks occurred in 2002 when the Larsen B Ice Shelf broke off. This huge mass of ice covered 3250 square kilometres and weighed half a trillion tons.


● POPULATION MIGRATION
For the reasons mentioned above, large numbers of people are finding it increasingly difficult to remain in their present locations and in many cases this is proving impossible. In Bangladesh some 13 million people will be forced to move if the sea level rises by just one metre and in the US tens of millions will be affected particularly along the north east coast, Florida, Louisiana and California. Globally it is expected that hundreds of millions of people will need to relocate or emigrate.


● MARINE ENVIRONMENT
The world’s oceans absorb carbon dioxide, some of which dissolves to form carbonic acid and this is affecting the alkalinity of the oceans. Many forms of marine life are highly sensitive to the level of alkalinity. The formation of corals is being affected and plankton, which forms the basis of the marine food chain, is also very sensitive. The increasing levels of carbon dioxide make it harder for many species of fish and shellfish to breathe and reproduce. Changes in the ecology and chemistry of the seas and oceans reduce their ability to absorb CO2, which consequently increases the rate of global warming.


● ECOSYSTEMS
Parts of Antarctica are now covered in grass and there is a massive migration of animals towards the polar regions, these migrations extend an average of 6.1km further from the equator each decade. Butterflies have extended their territory by some 200km further north in Europe and North America.

In the Arctic the habitat of polar bears and emperor penguins is being threatened. The waters of the Hudson Bay for example, are now ice free for three weeks more each year than they were 30 years ago. Polar bears are starving because they need to venture onto the frozen ice to hunt food. In the worst case scenario in another 10 or 20 years there may no longer be polar bears in this region and within a hundred years they could be extinct.

The most extensive report into global warming and climate change predicts that up to 40% of animal species could become extinct due to global warming.


● HEALTH AND DISEASE
Global warming is both beneficial and detrimental to people's health. There have been fewer deaths from cold related conditions but more deaths from heat related conditions. Globally there are more heat related deaths than cold related deaths so the net impact is a loss of life.

Warmer temperatures lead to an increase in air and water pollution thus increasing the risk to humans from infection and respiratory conditions such as asthma. Warmer temperatures are conducive to the breeding and spread of rats, mice, other rodents, ticks, mosquitoes and other vectors for disease. This has lead to an increase in the number of people affected and an expansion into previously unaffected areas.


● WATER SCARCITY
Rising sea levels lead to the contamination of groundwater rendering it undrinkable whilst at the same time higher temperatures lead to greater evaporation of fresh water from reservoirs. This is impacting on the human population as well as plants, animals and agriculture.

Higher temperatures and changing climate patterns mean that some areas are receiving less rainfall, in other areas when the rain does fall it does so on hard, sun-baked ground which is unable to absorb it. Instead of replenishing groundwater supplies the water runs off causing flash flooding and a lowering of the water table.


● MOUNTAIN ENVIRONMENTS
Glaciers are melting faster than has been known before - up to 40 metres per day in some places. In the last 100 years 50% of the world’s glaciers outside the polar regions have melted. The effects of glacial melt include flooding, landslides, avalanches and loss of habitat. In some mountainous regions melt water provides a year round water supply and without the glaciers there will be near drought conditions.


● ECONOMY
Sir Nicolas Sterm the former Vice CXairman and Chief Economist of the World Bank calculated that increased adverse weather is already be costing soime $600 billion a year. A temperature rise of 2 or 3°C would reduce global economic output by 3% which in percentage terms aren’t very big numbers but in terms of dollars the cost runs into trillions.

Insurance premiums are rising in line with the increased number of claims. The Association of British Insurers notes a 100% rise in weather related claims in recent years and states that climate change is already seriously impacting on the insurance industry.


● THERMOHALINE CIRCULATION
A possible effect of global warming is the failure or slowing of the ocean conveyor belts or meridional overturning circulation. Research is continuing and it's unclear at this time what effect, if any, global warming will have on thermohaline circulation. One theory is that the melting of polar ice could reduce salinity and introduce cold water into the oceans which could trigger a slowing or shutdown of thermohaline circulation. It's thought that the Gulf Stream which conveys warm Caribbean water to the coasts of Ireland, Britain and northern Europe is the most likely to be affected. Should this occur temperatures in these regions would drop be several degrees.


● CIVIL ENGINEERING
Rising sea levels need to be countered with extensive flood defence schemes. Costly engineering schemes need to be constructed in order to protect coastal cities. Many countries are not able to afford such schemes and low lying communities may need to be evacuated.

Temperature fluctuations cause damage to road surfaces, pipelines including oil, gas, water and sewerage pipes, railway lines and airport runways. Greater contraction and expansion resulting from fluctuating temperatures and greater temperature ranges weakens the structure.


● DEVELOPING NATIONS
The developing nations have so far been the worst affected by global warming. Decreasing rainfall, drought, insect infestation and severe weather events has impacted on crop production contributing to famine and starvation. Economic development is likely to be restricted whilst at the same time poverty increases. The poorer countries of the world are the ones that have the least resources to mitigate the effects of global warming.

Answer 2

If you have been watching the TV accounts of this, you would realize from their views that one; melting of the polar ice caps would upset the balance of the warm water currents, and this in turn would make part of the world much colder, thereby starting another mini ice age.
No one in the scientific community can agree on if there is or not a problem with global warming, and very few agree on the cause and cure, so who are we to judge?
Take your pick of what you care to believe.
Although there is much speculation as to the final result of this so-called global warming, according to the last scientific report on TV about a week ago, they claim that in the worst case scenario, where all of the ice caps would melt and cause massive flooding, this is supposed to happen no less than 500 thousand years from now, so why worry, when it's still all speculation?

Answer 3

Increased temperatures
increased carbons in the air
smog
less water
droughts
more El Ninos
melting polar caps

in the future
a rise in the oceans water
acid rain
more droughts

the list goes on and on

You may not like Al Gore, but he is very well versed on Global Warming and you should search him out on the net. His movie is excellent.

Answer 4

it quite is all the latest rip-off. remember Y2K? maximum anybody replaced into predicting doom and gloom and the top of our international as all of us comprehend it. And what befell? no longer something, honestly no longer something! What did the information media say the day after, no longer plenty, in simple terms that no longer something had befell! The forces at the back of worldwide warming are predicting what the temperatures would be a one hundred years interior the destiny! supply me a destroy, meteorologists can no longer even properly assume the temperature for day after today with fact! i know--- I artwork with 20 meteorologists. maximum of them have self belief that the earth warms and cools by potential of a pair of degees in organic cycles. to purpose and silence the "professionals" a extra physically powerful up from between the nationwide meteorological businesses desires to discredit any meterologist that does no longer go alongside with worldwide warming. it quite is been al over the radio talks shows this week.How related to the snowfall going on suitable now interior the Northeast, the worldwide warmnists are rather quiet suitable now, heh. I observed a television comedy skit the different night the place they have been asserting the demise of Al Gore, the large proponent of worldwide warming, asserting he had frozen to demise interior the snowfall. It replaced into hilarious! Why no longer look deeper into what this farce is meant to do to our society? it would be an exciting paper. government is often attempting to learn extra administration over the plenty in any comprehend it could. attempting to scare or shame us into relinquishing further and extra of our rights and freedoms. sturdy success to you as you inspect the real reasons for the worldwide warming hype. remember have not got self belief each thing which you examine; evaluate the source.

Answer 5

Al Gore and his cronies get richer....the poor masses get poorer.
Mother Nature doing as she has always done, warm up, cool off, warm up again, cool off again, etc. And sometimes have an ice age for good measure, then a deep thawing.

As for the future, the name Rockefeller and Kennedy will be mixed in the of Gore for the richest family's in the world. While people finally realise what saps they were for falling for the con put on them by the Gore group.

Life continues to exist, and the world lives for another day.

Answer 6

The atmosphere heats up, the polar ice caps melt, and the sea level rises, greatly. Continents will be reduced and most islands will be drowned. The ozone will deplete, and even more Solar energy will hit us, causing more cancer and skin damage.

Answer 7

The North and South Poles melt = Rise in the see level = more floods and hurricanes = end of the world ....simple and easy , ha !

Answer 8

CO2 IS NOT POLLUTION