global warming?

Question

What effect does global warming have on:

farming

sea levels

water

plants

animals

humans

Thanks for answering

Answer 1

<< FARMING >>

Rising sea levels (see below) will impact resulting in the loss of large areas of agricultural land, the consequences of which will be population migration, famine and / or the need to import food from elsewhere. It will be the African and Asian countries that are hardest hit with crop production falling by up to a third.

Global warming can be a doubled edged sword. It has already resulted in the melting of a million square kilometres of Siberian permafrost, an area four times the size of the UK and covering the world’s largest peat bog. The melting has created land suitable for crops but at the same time has causing billions of tons of methane gas to be released from the peat, which in turn contributes to further global warming. A further consequence is the loss of over 1,000 lakes but the creation of many new ones.

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.

<< SEA LEVELS >>

Sea levels are rising faster now than at any time since the melting of the glaciers that marked the end of the last ice age. As the glaciers melted sea levels rose by some 120 metres (400 feet) but for the last 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.

In some places the rate of rise is much more dramatic. The Sundarman Delta has seen levels rising by more than 30mm a year, millions have already been forced to leave their homes and the Carteret Islands in the Pacific Ocean are currently being evacuated due to rising sea levels making this the first complete land mass to be lost to rising sea levels.

It’s estimated that meltwater running off the Greenland ice sheet will in itself cause a rise of between 20 and 50mm a year. In time this will 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.

The two main causes of sea level rises are the expansion of the world’s seas and oceans as they warm up and the melting of the ice caps.

The temperature of the seas and oceans are rising faster then ever and like anything that heats up, they’re expanding. At the same time ice sheets are melting and releasing water into the oceans.

<< WATER >>

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 will impact on the human population as well as plants, animals and agriculture. A feedback effect of higher temperatures is that demand for water increases thus compounding the problem.

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

<< PLANTS AND ANIMALS >>

Global warming affects animals and plants as well as humans.

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 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 ecosystems are interlinked, if one species is affected it will undoubtedly affect others which in turn will affect others. The enforced migration of one animal for example, may result in the starvation of another which in turn could have other knock on effects and so ad infinitum.

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.

<< HUMANS >>

In respect of health: Global warming will be both beneficial and detrimental to people's health. There will be fewer deaths from cold related conditions but more deaths from heat related conditions including heat stroke, heart attack and heat exhaustion. Globally there are more heat related deaths than cold related deaths so the net impact will be a loss of life. Those most at risk include the elderly, young, infirm and homeless.

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 will lead to an increase in the number of people affected and an expansion into previously unaffected areas.

Answer 2

Global Warming has occurred in the past, and has always been associated with periods of plenty.
Warmer = better growing condititions, longer growing season.
Sea levels may rise by a few mm.
Global warming means global wetting - warm air can hold more water than cold, and warm water has a higher vapour pressure.
Plants like more CO2, will grow faster.
Animals - some will prosper, some will die out - its always been that way.
Humans will make money out of it.
These things are certain.

Answer 3

#1 faming the frote will not grow that good because if the drots the heat, #2 the sea levle will go up and more citys will flood. #3it will be harder to get water we all ready have to buy water.#4the plants will stop growing fruit by the real way man would have to make it happen.#5 we are loseing bees birds bats. butterflys and other small animals like insects. also we are long the polor bars all these animals are disapearing like the polor bare because the ice caps are melting this lose it happing now.#6 humans will have to pay more and find ways to live life on there own and not from the goverments.#7 we are loing the north pole they think the north pole will be gone by 2040.ad.

Answer 4

farming - weather patterns get distorted, so it can cause draught (drout, how to you spell that word?) and flooding in others. meaning that farms will be completely dry, or soaking wet. both ways they are unable to grow

sea levels - glaciers melting into oceans means more water in the oceans so sea levels will go way up.

water - water will be more salty..? i dunno. less fresh water, i suppose.

plants - i don't know the science of it, but plant species will not adapt to new environments and weather, and they will become extinct.

animals - same with animals. example is the polar bear. they live in the arctic and arctic ice caps and glaciers are melting, so the polar bears are drowning.

humans - we will have to learn to adapt to new climates, more extreme weather, and stronger storms. people in areas that lie close to the ocean (New Orleans, Some Caribbean islands, for example) will have to leave, because they will become flooded. There was also a heat wave in Europe a couple years ago that killed 35, 000 people.


So yeah, its pretty intense.

Answer 5

Climate change is not a problem in isolation ,What people do is mixed up with it ,such as desertification because of overgrazing and intense and irresponsible farming ,using fertilizers and herbicides and pesticides,
As well as the overpumping of surface and carbon Aquifers,

Deforestation resulting in wind and water erosion or landslides.
And the forrest fires that are caused by slash and burn methods gone out of control
this also affecting wildlife because of loss of habitat

on top of all this is Soil.Water and Air polution caused by Humanity

PEOPLE

in North Africa,India,Mexico ,millions of people are effected by land loss and desertification and some have died as a result,

And there have been heat waves or cold spells and floods that have killed people in France,Mexico,Africa,India,

ANIMALS &PLANTS

And now many animals are becoming sick because of changes in temperature ,
vital links in the food chains are disapearing affecting other species further along in the chain

90% of the feral (wild) bee population in the United States has died out.but this is mostly because of a parasite whether or not the increase of this mite is related to clomate change i dont know

In the Netherlands bee diversity is down 80 percent in the sites researched, and "bee species are declining or have become extinct in Britain."

wildflowers that depend on pollination have dropped by 70 percent

we are witness to a mass exstinction ,for the first time since the dinosaurs, of the earth's estimated 10 million species, 300,000 have vanished in the past 50 years. each years, 3,000 to 30,000 species become extinct.

everything is happening so fast it is not possible to monitor things any more.

FARMING,& DESERTIFICATION

,the Sahara is growing by 7 kilometers a year
and most of the desserts we know are a results of mans actions ,and they are increasing ,not getting less ,in the dinosaurs days ,there were few desserts.

collectively this planet is drying up ,

each degree rise in temperature means 10%crop loss

and there is less and less water (because of deforestation),to irrigate this production ,
and there are less and less farmers to do it..
Arable lands and their farms are lost all over the globe. Many farmers sons abandon farming and head for the cities.

Northern China is drying up, what once were millions of food producing people, are now hungry refugees ,running for their lives from the all consuming dust storms.
This will have a great effect on world food prices when they start buying at what ever cost, to feed their people.

WATER

25% of the planets surface is land
75%of the surface is water and it is rising

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97%of the Earths water is salt

fresh water is only 3% of all the Earths water
most of it is beyond out reach

STORAGE or Location of % of the fresh water

ice and glaziers 74%
groundwater 800 meters + 13.5 %
groundwater less than 800meters 11.o%
Lakes 0.3%
soils 0.006%
Atmospheric in circulation 0.0035%
rivers 0.03%
frozen land or permafrost is not included and represent an unavailable storage of 40%

now much ice is melting and running into the seas fresh water lost for ever.

the ice of the North pole is already in the water and it wont make a difference to sea levels ,but the ice of the Glaziers .mountain snow,Antarctica and Greenland is on the land and this WILL affect sea levels ,the lost of fresh water is the worst part of this ,and right now there is a rush to the ice bergs to save some of it to put in bottles.

so of the 3% about 11.6 ,is easily available to us ,in rivers, lakes and ground water surface aquifers,more and more of this is becoming contaminated

FOOTNOTE
Each year farmers have to feed some 70 million more people than the year before but with less topsoil.

Over the last half century,
Population growth & rising incomes have tripled world grain demand from 640 million tons to 1,855 million

In the near future the global farming community will not be able to feed every body ,food prices will continue to rise. .

potable water is getting at critical levels and people are already fighting over water this will only get worse

Answer 6

in case you want to receive furnish money for climate study, do you think of which you will get a cheque in case you assert," i want the furnish, as i think of that i will practice that the figures that the present paradigm is predicated upon are incorrect" ? the super environmentalist, David Bellamy, has been silenced, and refused airtime. there remains no shown causative link between the quantity of Co2 interior the ambience, and a upward thrust in international temperatures. The WWWF photos of the polar bears swimming have been taken interior the Arctic summer season; while the ice cap in part melts, as they could not upward thrust as much as image interior the iciness. The ice became too thick! The East-Anglian uni study figures. "Oh! The figures do not tournament our expectancies. Oh properly. save quiet. because of the fact all of us understand that we are top." while the theory, and the religion is extra significant than squarely dealing with the valid doubts of a super form of non furnish-supported scientists, technology has been superceded by making use of non secular zealots. As Oliver Cromwell colourfully mentioned." I pray thee, interior the bowels of Christ, evaluate that thou mayest be incorrect."