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What problems does global warming cause for animals and vegetation?
It may or may not because if the global warming is not so bad it will not effect plant and animal communities if global warming is bad it will effect plant and animal communities. If the plant life gets effected by global warming, some animals can be effected to because they eat the plants! Same thing for the plants that eat insects and stuff!
Do human farts cause global warming?
Yes.According to FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS study "LIVESTOCK'S LONG SHADOW" (2006), Using a methodology that considers the entire commodity chain, it estimates that livestock are responsible for 18 percent of greenhouse gas emissions, a bigger share than that of transport (cars, boats, planes, trains).See the link below.
What effect does global warming have on the polar ice caps?
Rising temperatures cause Arctic sea ice to melt earlier in the year, so polar bears are driven to go ashore without sufficient fat reserves to survive late summer and early autumn. Reduction of sea ice means they have to swim more, making them weaker. Some drown. Thinner sea ice makes it harder for them to catch seals. Poorly nourished female bears don't build suitable dens, don't produce as many cubs, and cubs that are born have a lower survival rate. The Western Hudson Bay subpopulation of polar bears are one of the best studied.Warming temperatures mean that ice-floe breakup in western Hudson Bay now happens three weeks earlier than it did 30 years ago, so the bears' feeding season is similarly shortened. The average weight of single female bears was about 290 kg in 1980. In 2004 the average weight was 230 kg. Bear population is Western Hudson Bay declined 22% between 1987 and 2004. Polar bears (Ursus maritimus) live only in the northern arctic region of the planet, the region many people think of as the "North Pole". While they do not actually spend their entire lives on the ice, they depend on pack ice for their survival. Pack ice, also referred to as "ice floes", is ice which forms in arctic regions of the ocean, such as the Arctic Ocean in the north and the ocean surrounding Antarctica in the south.Global Warming is when Global Average Temperatures rise, causing the Earth to gradually become warmer; as the Earth warms, the pack ice begins to melt. Without pack ice Polar bears are in danger because they need pack ice to be able to feed. They travel over the sea ice looking for a tell-tale breathing hole those means that there is a seal underneath. They then jump on the ice to break through and then capture and eat the seal. Polar bears would generally be unable to catch enough food by any other hunting method. So, once the sea ice goes, then so do the polar bears in the wild.It could someday affect them greatly. Climate groups predict that, as the Arctic continues to grow in temperature due to climate change (global warming), two thirds of the world's polar bears could disappear by mid-century.For the best currently available scientific facts, and according to the 2011 International Union for Conservation of Nature (IUCN) Red List (a list of endangered and threatened species, which is one of the three major international endangered species lists cited officially in the Answers.com category of Endangered Species ~ for species that are listed under any status on the list ~ list version 2011.1), polar bears are listed as "Vulnerable." This is just one classification step down from "Endangered" on that listing.The Red List also indicates that the population trend is "Decreasing". And it says that, "Global climate change poses a substantial threat to the habitat of polar bears."The reduction in polar bear population is predicted by IUCN to be greater than 30% loss within 3 generations (45 Years), due to a decline in: area of occupancy, extent of occurrence, and habitat quality. This is related to the melting loss of sea ice, which is the hunting grounds of the bears.Also see a link to the 2011 Red List entry for polar bears below in the related links section.Although there are people who will contend that polar bears are not threatened because they are not in dire need of help (i.e., not even close to becoming extinct), polar bears are classified as being vulnerable. This classification means that they are threatened, just not as threatened as Giant Pandas. See above for why lack of sea ice means death -- and eventual extinction -- for polar bears, a species of bear which depends on sea ice while hunting.Yes, they can only hunt for food on frozen sea ice and global warming is reducing the amount of sea ice and making it arive later and melt earlier - Thus polar bears are going hungry for longer in summer and having their hunting range reduced.
Why should you stop global warming?
Unfortunately there is very little we can do to stop it. The economic forces in place are too large to change overnight, and the earth is large enough that it will take centuries to adjust to the changes we have already introduced. There is no getting this genie back in the bag. We can, however, take reasonable measures to slow the increase of CO2--things we should have started doing in earnest 40 years ago.
How does human activity increase global warming?
Humans are burning fuels that put hot house gasses into the atmosphere (more each year)Humans are releasing fluorocarbons exacerbating the situation. (more each year)They pollute the air with acids that kill whole forests of reducing the amount of hothouse gasses being absorbed back into the system. (more each year)They burn down whole forests to produce pasture in order to grow cattle that produce methane another hothouse gasThey burn down whole forests to produce charcoal which is then burned again in order to produce fuel for food and heating.To name but a fewthere are lots of ways human activities increase global warming. here are a fewcars increase global warming because of fumesfactories dump waste into the rivers and seas so water becomes pollutedchopping down trees releases the carbon dioxide in the tree that effects the o zone layerthere are simple solutions to these problems but we cant seem to help destroying the planetWe speed the process by pump the carbon from oil well and burn them to CO2. We also affect the carbon chain by over consume of natural resource and affect the carbon balance.
Why should human be worried about the effect of global warming?
Global warming affects the animals and the food chain and the ocean. Ocean levels are rising, food chains are getting messed up and Arctic animals like polar bears are being put in danger. The polar bears are having less and less ice to walk on and can become stranded in miles of water. We should be worried about global warming because as the earth cotinues to heat up the glaciers melt and the water levels rise. If the water levels keep rising then much of the coasts will be under water.
How are panda and polar bears the same?
They are both on the edge of becoming extinct .If both were to disappear they food chain would be messed up.They both are disappearing 100 to 1,000 time faster than they should.There is organization made to help pandas and polar bears (world wildlife fund)wwf.comBoth are dying because of global warming and people related issues.both are becoming really rare.BOTH REALLY NEED YOUR HELP !!!!!!!
How are clownfish affected by global warming?
Warmer and more acidic oceans are affecting the food chain of many fish and marine animals, including the clownfish.
What sea animals are the most at risk due to global warming?
One of the sea animals which are at risk due to global warming is the Pteropod. These tiny marine snails are the size of lentils and as marine invertebrates deal with increasing acidity, the larvae have to re-tune their metabolism in order to make a shell. It is possible, that these marine snails will lose their shell by 2050. The problem is, if we lose these organisms the impact on the food chain will be catastrophic.
Are polar bears dying of global warming?
It's difficult to get an exact figure for all polar bear numbers but some bears are almost definitely dying because of global warming. Rising temperatures cause Arctic sea ice to melt earlier in the year, so the bears are driven to go ashore without sufficient fat reserves to survive late summer and early autumn. Reduction of sea ice means they have to swim more, making them weaker. Some drown. Thinner sea ice makes it harder for them to catch seals. Poorly nourished female bears don't build suitable dens, don't produce as many cubs, and cubs that are born have a lower survival rate. The Western Hudson Bay subpopulation of polar bears are one of the best studied. Warming temperatures mean that ice-floe breakup in western Hudson Bay now happens three weeks earlier than it did 30 years ago, so the bears' feeding season is similarly shortened. The average weight of single female bears was about 290 kg in 1980. In 2004 the average weight was 230 kg. Bear population in Western Hudson Bay declined 22% between 1987 and 2004.
Are polar bears at the top of the arctic food chain?
Yes, polar bears are on the top of the Arctic food chain. Then the seals.
Are bears prey?
There is nothing that preys on bears. They are a the top or the food chain and are predators.
Is there any one animal in Antarctica that is most affected by global warming?
Penguins. They live on fish and krill. Krill supplies are being affected by warmer waters and this is affecting the whole food chain.
What factors pose a threat to Antarctica's environment?
Global warming and climate change threaten the food chain starting with krillChemical pollution of the oceansPhysical pollution of the oceans (plastic rubbish, bags, nets)
How are Snowy Owls being affected by global warming?
Global warming is a big problem for Snowy Owls. It hurts the Snowy Owls in two different and dangerous ways: loss of habitat, and hurting the food chain. The first way, the loss of habitat is caused by loss of snow- due to global warming. The other way, hurting the food chain, is also caused by global warming but does not hurt the Snowy Owls directly. There are fewer plants this way, and the Snowy Owl's prey (lemmings, hares, etc.) have less food. We already said that Snowy Owl population is very abrupt so their population is getting lesser and lesser. Those are the things that endanger the Snowy Owl.
What part are black bears in a food chain?
A bear on the top of the food chain.
Explain how temperature and precipitation affect the distribution of global biomes?
Biomes in places like Antarctica or the north/south pole are being affected by temperature because icebergs are melting which the polar bears need and when polar bears die it affects the food chain which can destroy the human population.
