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What effect has global warming had on shark populations?
I can only speculate but I wouldn't imagine global warming would have had much of an impact on global shark populations to date. Water takes a lot of energy to heat up and changes to global oceanic temperatures are less noticable than atmospheric temperatures. Sharks are cold-blooded so changes in the oceans' temperatures could potentially affect their metabolisms but I would suspect sharks would simply migrate to a more suitable area if one location became unfavourable. Most of the effects of global warming on oceanic ecosystems is through increased concentrations of CO2 in the water which can reduce the ability of invertebrate, such as corals and shellfish, to produce shells made from calcium carbonate. The main threat to shark populations is overharvesting by humans. I heard a statistic a few years ago (so don't know how correct it still is) that shark populations in the Mediterranean were ~3% of their historical size due to overfishing. I'm confident any impact of global warming is fairly irrelevant to the killing of sharks for foods such as shark fin soup.
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Global Warming not only us but also animals such as Polar Bears. Polar bears lose their habitats and they won't get to eat the seals' and they will die. The cause of this is c…ars using up to much heat and they exhaust fumes.
The more people there are, the more they tend to use energy derived from fossil fuel, and the faster atmospheric concentrations of carbon dioxide rise. If there were only h…alf a billion people on the earth, earth could probably absorb most of the green house gases emitted, or failing that the planet would have much more time to adapt. There are 14 times that many people on the planet, so change occurs 14 times as fast. People in China and India want to enjoy the same standard of living Americans enjoy, though Americans consume more energy per capita than any other industrial nation. The consequences for our planet will not be good.
Global warming may eventually be responsible for the loss of 50percent of chimpanzee habitat. Rising temperatures mean the chimpshave to rest more, causing them to eat less.
There are a number of ways detergent can be used to cause GlobalWarming. Detergents can be burned for example.
Polar Bear populations could be effected by global warming on the polar ice ecosystem for various reasons. Their environment is melting which doesn't give much of a problem to… them since polar bears don't need ice to survive. But it does make finding prey more difficult for the bears. Polar Bears move slow because they will overheat in their fur and extra layers of blubber, that makes it even harder for them to hunt when (with the warmer air temperatures) they cant move as fast without overheating. Soon the populations would go down quite a bit. Hopefully this is merely a " what if" type issue anyway. Polar bears are not decreasing yet and global warming appears to be a non existent issue also. Globally, 1999 was the warmest year recorded and NASA sees our oceans cooling. The sea ice in the Actic has been melting earlier in the summers for the past few years, reducing their hunting season by up to a month, meaning they get less food over the course of the year, in turn meaning their young also get less food and have a lower chance of survival. The Polar Bears also have to swim a lot further for seals on the ice to eat, and with less food they have less energy, thus occasionally (though there haven't been many reported cases) causing them to drown from exhaustion. The ice in the last two years has been cooling, possibly due to the land ice melting and running down into the sea, thus keeping the top layer of water cool, preventing the ice from melting so much. From what few studies that have been actually done and not just speculated on the polar bears, the population is not declining and appears to have increased quite abit the past 30 years. Estimates are that an additional 1,800 bears have been added to the population in the past 30 years. The idea that the planet is outside normal warming trends, while not really scientifically realistic, is a remote possibility. The record ice grow last year coming even earlier then ever recorded should dispell the above myths of shorter seasons. Polar bears also are called sea bears because they spend enormous times swimming and hunting in the water.
Global warming is the heating of the earth because of humans. It's caused by a rise in Carbon dioxide (CO2) in the atmosphere which causes the greenhouse gases to retain more …heat. (Without these gases our planet couldn't hold in heat) Our global temperature has raised about 1 degree Celsius in the last century, a change that would take thousands of years to occur naturally. One result is the melting of glaciers, which will eventually cause flooding. Answer: Global warming has been identified as a major issue for the global community. More properly this is called "Global Climate Change" as some areas may be warmer, some cooler, some wetter, some drier... Background: The contention of the larger number of climatologists is that human activities since the industrial revolution have increased the content of CO 2 , methane and other gases in the atmosphere that trap solar heat. At the same time human activities have reduced the forest cover that had traditionally absorbed these same materials. They state that an increasing level of these atmospheric constituents has lead to a chain of chemical and physical changes that have increased the world's average temperature. Observations of atmospheric gas composition, average sea water temperatures, atmospheric temperatures etc. confirm the trends and support the proposition. Potential Impacts: 1. The sea levels may rise. Technically this may be caused by melting ice from the polar ice caps or an increase in sea height as the less dense water is less compressed. Low lying land like many Pacific Islands and Miami will be under water. 2. Serious climate changes may result from diverted ocean currents. As an example, the Gulf Stream keeps Europe warm. If the Stream is not running Europe may be much cooler and drier. Crops may not grow. 3. Ecology changes on the land could include species of animals and plants extending their range to the polar regions. Local flora and fauna may become extinct. A good example is the spread of Africanized bees and Fire Ants. Sea life may also be impacted both through the introduction of competitive species presently kept in other areas by water temperature changes, and by failure to adapt to less saline water. 4. Human society may be disrupted if changes in rainfall and temperature cause crop failure. Famine refugees may require significant humanitarian attention by the "lucky" nations.
Global winds are dependent largely on the large difference in temperature between polar and tropical regions. Global warming heats the poles faster than the tropics, thus redu…cing the temperature difference. Exactly how global winds would change as a result is hard to predict. One likely trend would be a weakening of jets streams in the temperate latitudes.
The Vostok Ice Core data would indicate that events of global warming began over 400,000 years ago. It is most likely that global warming events occurred millions of years bef…ore and followed by global cooling that led to the formation of ice. Data indicates there have been over 75 major global temperature swings in just the last 5,000 years. Answer: The last ice age began about 110,000 years ago, and ended 12 to 15 thousand years ago. The maximum ice extent occurred about 22,000 years ago. Therefore, the previous ice age warming began roughly 22,000 years ago. Although the age had lasted a long time, like previous ice ages once it began to thaw a feedback mechanism kicked in making the temperature rise quickly. So for natural global warming the answer would be 22,000 years ago. That ice age, like previous ages, was caused by orbital variations. Currently earth is closest to the sun in January, making northern hemisphere winters (where most of the land mass resides) slightly warmer. When the dead of winter occurs at aphelion, winters tend to be colder. This is one cycle. There are other, longer natural climate cycles. The current Milankovitch Cycle (as these orbital cycles are known) indicates earth should have entered a slight gradual cooling phase some centuries ago, culminating with the onset of another ice age in another 50,000 years. Instead, earth's temperature has been climbing rather dramatically, in response to significantly increased greenhouse gas emissions from human activity. The accompanying temperature chart shows the most significant part of the recent upswing took effect beginning in the 1970s (see links).
EVERYONE. humans & animals
Yes. Global warming is the result of increasing levels ofatmospheric carbon dioxide, caused by human activity. Carbondioxide emissions are now classed as pollution. A: Pollut…ion is a bad thing to do to our planet. It certainly hurtsour water, plant life and land. It has little, if any effect on theissue of global warming. A: Yes, it does. Specifically the emission of Carbon dioxide, methaneand several other greenhouse gases. A: The CO2 from burning fossil fuels is one of the causes of globalwarming, but ironically, the solid particles (soot) which alsocomes from fossil fuels is filtering out sunlight and having acooling effect. If we were to remove the particles, global warmingwould proceed faster than it already is. A: It is a proven fact that the 3 ice ages the planet has had was theearth trying to recool itself. The UV rays from the sun warm theearth and the atmosphere does not allow them to escape. Over timethe trapped UV rays build up causing global warming. To cool itselfback down the earth goes through what is called a cooling cycle.That is where the ice ages came in 1 major, 2 minor). The last iceage happened in the 1800's where there where reports of being ableto walk across the New York Harbor. The burning fossil fuels causethe warming to increase faster so they just speed up a naturalprocess. A: When pollution builds up in Earth's atmosphere, it can't escape.Heat from the sun shines through the pollution (greenhouse gases)and the greenhouse gases act almost like a greenhouse, trappingheat. So as more greenhouse gases build up, more heat is trapped inEarth's atmosphere, therefore causing Earth to heat up, and causingGlobal Warming. A: Smoke from the factories and vehicles contain harmful chemicalswhich can also cause air pollution. Those air will gather to formclouds and later then will fall as a rain which is polluted and wecall this as acid rain. Acid rain can damage the buildings and evencan cause plants to die. Plants are the only living thing that cantake in carbon dioxide and give out oxygen. if those plants willdie, there will be too much co2 and lack of 02 in the air. Thatwill be result in global warming. A: I think "Air Pollution" does cause "Global Warming", Because airpollution is made up of solid particles and chemicals. Naturalprocesses impacting the atmosphere include volcanoes, biologicaldecay, and dust storms. Plants, trees, and grass release volatileorganic compounds (VOCs), such as methane, into the air. Which Ithink it does cause global warming. Global Warming is caused by thegases in the air and that's what is melting are ice and killing arePolar Bears So yes Air Pollution does cause Global Warming. A: Pollution is bad, but not a part of the issue of Man induced GlobalWarming. A: Pollution is the main cause of global warming. Pollutants such asgreenhouse gases are often trapped in the atmosphere. As a result,heat is retained inside. This heat is what causes temperaturesaround the globe to rise thus causing global warming. A: Pollution does not cause Global Warming. Carbon Dioxide is not apollutant. SMOG is a pollutant. So how is smog related to global warming? Lookat the period between 1940 and 1975. Temperatures droppeddramatically in the 1940s and remained low through the 50s, 60s,and early 70s. This seems to contradict the global warming theoryof anthropogenic causes of global warming, since we didn't stop, oreven reduce, carbon dioxide emissions during that time. In fact, werapidly increased carbon dioxide emissions during that time. Thebest explanation is... SMOG. They say that, in addition to puttingout a bunch of CO2 during that time, we also generated a lot ofsmog. And the blanket of smog surrounding the Earth blockedsunlight from reaching the surface, thus keeping temperatures cool.So, smog DECREASES global warming. So, there are two man-made pollutants that decrease global warming,compared to one naturally occurring substance that may increaseglobal warming. A: Certainly our normal understand of pollution has very little to dowith global warming. However you might argue that the extra carbon dioxide being put into the atmospheresince the Industrial Revolution is disrupting the natural carboncycle and so is a pollutant. (One definition of pollutant is "Asubstance or energy introduced into the environment that hasundesired effects, or adversely affects the usefulness of aresource.")
Global warming is manifested as a 0.8Â°C rise in average globaltemperature since 1900 1. Increase in the intensity of tropical storms is suspected 2. Anticipated sea level r…ise - although the predicted sea levelrise has been much less than predicted, possibly due to thethickening of the ice in most of Antarctica.- although SOME areasof Antarctic ice have shrunk, but overall Antarctic ice hasincreased significantly 4. Arctic ice in decline along with continued glacier ice loss fromaround the world. 5. Increase in droughts and fires - possibly due to changes inweather driven by global warming 6. Spread of tropical disease to more northern latitudes. Migrationof species. 7 Increased plant growth in some regions as temperatures and carbondioxide levels increase - with decreased plant growth in others dueto increasing temperatures, decreased local rainfall, and increasedevaporation.
The rainforest keeps a lot of the carbon dioxide in it. This helps control global warming. If the rainforest was to be burnt down, global warming would go higher. But if you… dont burn the rainfroest it wont be as high.
Climate change could cause sea level rise so that a small Pacific Island country, Kiribati, could go underwater, and all the population of more than 100,000 would have no home…s, no stores, no government and no country!
By the rise in sea level. Also the change in the weather is causing little rainfall plus increase in heat.
Melting glacial ice will raise sea levels. Higher ocean levels translates to more instances of coastal flooding. In addition, warmer temperatures provides more energy for stor…ms. Our climate models indicate the frequency of hurricanes should remain roughly the same, but their energy should increase. Global warming results in climate change, with many areas of the world suffering precipitation loss and drought. A few areas will have greater than usual rainfall. Species migration will be another result, one we have noticed already. Species that cannot adapt to the rapidity of the current change will become extinct. Tropical diseases are expected to acclimate to greater latitudes (both northern and southern).
We now all know that CO2 is all but a bit player here. However, seeing that any and All Means of Removal of CO2 from Our Paper Thin Atmosphere is 'Tantamount to Success', Phot…osynthetic Capture of CO2 should be Tantamount in Our Efforts. One author states that just by revisioning, and revisiting, Global Agricultural Land Use will 'take care of it'.