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Global Warming
Global Warming is the century-scale rise in the average temperature of the Earth's surface, oceans, and atmosphere due to an increase in the greenhouse effect. Greenhouse gases such as carbon dioxide from burning fossil fuels or from deforestation trap heat that would otherwise escape from Earth. This warming is causing climate patterns to change.
11,528 Questions
What is MWH Global's population?
MWH Global is an engineering and consulting company, not a population or community. It does not have a population.
When was A Change of Climate created?
"A Change of Climate" was created in 1994 by British author Hilary Mantel. Her novel explores themes of identity, loss, and redemption through the story of a missionary family's experiences in South Africa and later in Norfolk, England.
How many pages does Why We Disagree About Climate Change have?
Why We Disagree About Climate Change has 432 pages.
What is the ISBN of Why We Disagree About Climate Change?
The ISBN of Why We Disagree About Climate Change is 978-0521727327.
What caused global warming before humans were around to take the blame?
Global warming is natural. This is characterized by the increase of temperature on a certain planet. Basically, it is the sun which heats up this planet. The heat is screened through greenhouse gases whenever they get out.
When was The Doughnut in Granny's Greenhouse created?
The Doughnut in Granny's Greenhouse was created in 1968-11.
When was Intergovernmental Panel on Climate Change created?
The Intergovernmental Panel on Climate Change (IPCC) was created by the United Nations in 1988. It was established to provide governments with regular assessments of the scientific basis of climate change, its impacts, and future risks.
How are greenhouse effect and global warming different?
They are similar. The greenhouse effect is more of what causes global warming. The greenhouse effect is a build up of carbon dioxide and other greenhouse gases in the upper atmosphere. This (mostly) carbon dioxide (CO2) acts similarly to the glass roof of a green house. Light passes through CO2 (because it's a clear gas) and hits the ground. The atoms in the ground absorb light, and some of their electrons jump to higher energy electron shells. Later, these same electrons fall back to their original positions, or stable state, and re-radiate heat energy (well it's really infrared light, but that translated into heat when it hits something). Under normal conditions, most of this infrared light can escape the atmosphere. However, carbon dioxide happens to be one of the substances that reflects infrared light. This traps heat in the earth, preventing it from escaping into space, and heating up the earth.
While above is the greenhouse effect, global warming is the result of the greenhouse effect. Global warming is basically the heating of the earth on a world wide scale. This will damage environments, alter oceanic currents, kill many animal species and alter our air currents.
Depending on where you live, you could experience more snow, or extreme drought. In New York, we have had more snow than I can ever remember because warmer ground actually increases the chance of snow. You see upward air drafts, caused by relatively warm air, lift evaporated water high into the atmosphere, where it undergoes adiabatic expansion and cools. As it cools, it sublimes to form snow. Global warming causes more warm upward air-drafts, therefore causing more snow. This is why global warming is now being called global climate change, because it does not necessarily make certain areas warmer, due to changes in air and water currents.
Was the last ice age caused by global warming?
The last ice age is believed to have been triggered by the Milankovich cycles, which operate over the very long term and have great value as a theory to explain ice ages and long-term changes in the climate. Milankovich cycles can cause a very small reduction in average global temperatures over a period of centuries, but are considered too weak to be the only explanation of the ice ages. Scientists say that as the earth cooled slightly, as a result of a change in the Milankovich cycle, the level of atmospheric water vapour fell, resulting in a gradual further fall in temperatures. Eventually, carbon dioxide concentrations began to fall in tandem with falling water vapour levles, until an ice age was underway.
After a period of thousands of years, the cycle was self-correcting. Ice covered much of the seas, while the remainder of the ocean was too cold to absorb much carbon dioxide. Rising carbon dioxide levels began to warm the world once again, leading to higher water vapour levels and eventually a return to normal temperatures.
Milankovich cycles are considered unimportant for short term climate changes such as the present period of global warming.
How do oceans decrease the amount of atmospheric carbon dioxide?
Oceans absorb carbon dioxide from the atmosphere through a process called carbon sequestration. Marine plants, such as phytoplankton, also capture carbon dioxide through photosynthesis. Additionally, when carbon dioxide dissolves in ocean water, it forms carbonic acid, which then reacts with minerals in the water to create bicarbonate ions, effectively storing the carbon.
How is water linked to greenhouse gases?
Water vapor absorbs infrared heat in the atmosphere so it it classed as a greenhouse gas. However, man can not add water to the atmosphere, and water moves in and out of the atmosphere very quickly, so it can't be controlled. The natural water cycle is responsible for the movement of water and water vapor.
As carbon dioxide and other greenhouse gases raise the temperature in the atmosphere more water vapor is able to rise into the atmosphere. This circular effect causes more warming than before.
Can wildfires start global warming?
While wildfires release significant amounts of carbon dioxide into the atmosphere which contribute to global warming, they are not a direct cause of it. Wildfires are typically a result of human activity or natural factors like lightning strikes. However, their frequency and intensity can be influenced by climate change, which is a major driver of global warming.
Polar ice caps form when snow accumulates over many years and compresses into ice under its own weight. Cold temperatures prevent the ice from melting, allowing it to build up and form extensive sheets of ice at the poles. These ice sheets can grow thicker over time as more snow accumulates on top and compacts into ice.
What changes are likely to happen to the sea level as the greenhouse effect gets worse?
There are three key impacts of sea level rise.
1) INUNDATION (flooding):
Many low lying countries will be under water, including large parts of the USA, UK, Holland, Bangladesh, and many Pacific Island countries.
Note that it is likely that these effects will be delayed, giving the false impression that they are not as serious as might have been feared.
This is because, before the sea level begins to visibly rise, the water level has to equalise globally, that is, the sea water must penetrate and fill every void, hollow and porous body of soil/rock it encounters. Caverns, cave systems, lava tubes, 'cenotes', underground lakes and rivers etc., all must be filled before the waters can rise.
Once this process is complete, however, sea level rise will suddenly gain momentum, as there will be nowhere else for the water to go. that is when we shall see coastal waters rise at vertiginous speed, especially, on a fairly localised scale, during full moon and high tide.
2) UNDERMINING (weakening by fluid penetration of porous rocks and soils):
As water infiltrates soils and minerals it will begin to dissolve some of the matrices that hold together particles in soils and sedimentary rocks, like aggregates, breccias, mudstones, siltstones, sandstones, limestone etc.
As a result of these unevenly distributed weakening of the rock and soils, whole areas of the surface will become unstable, though not necessarily visibly so, as these infiltrations may begin at great depths and progress upwards and outwards, as the sea penetrates deeper inland.
The heavier the construction burden on the rock/soil the more likely the sudden, catastrophic collapse of roads, bridges, cliffs, monuments and any other structure built on undermined land/rock.
2) ECOTOXICOLOGICAL IMPACTS (toxicity in the environment):
There are other hazards likely to stem from the infiltration of sea water into areas that had not been accessible to sea waters for millennia, or even millions of years.
A key one is the dispersion and bio-concentration of pollutants in the ecosystem.
Humanity has been using the land as a waste repository for dead bodies, urban waste, toxic chemicals, radioactive waste, ammunitions etc.
When sea water starts to inundate this class of underground voids it will aggressively begin to dissolve the most water-soluble of them and gradually leach them out into surrounding soils and waters. This is how Persistent organic pollutants and heavy metals, in particular, enter into food chains and "food webs"/"food pyramids".
Where these plumes of toxic liquor flow into bodies of water, four main processes will take over:
A) TRANSPORTATION: currents will transport the toxic effluent out towards the sea
B) ADSORPTION/ABSOPRTION: depending on the nature of the sands, silts and rock strata the toxic liquids encounter
C) ASSIMILATION: aquatic species will breather and ingest toxic liquor
D) BIOMAGNIFICATION: as invertebrates and vertebrates assimilate toxic pollutants in suspension/solution, predators will consume them and accumulate in their tissues.
As higher predators consume them, in turn, the process continues "up" the food chain so that, say 1000 plankton >> 100 crustaceans >> 10 fish >> 1 bird/mammal.
So, if each plankton carries a toxic burden of 0.1mg this is
1st trophic layer 0.1mcg x 1000 plankton = 100mcg
2nd trophic layer 100mcg x 100 crustaceans = 10,000mcg = 100mg
3rd trophic layer 100mg x 10 fish = 1000mg = 1g
So the toxic burden a bird feeding on a dead or dying fish in the above example would assimilate 1g of toxic pollutant for every 10 fish it consumes.
The process continues up the food chain, so that a predator consuming 10 birds would assimilate 10 gr. of toxic pollutant. Note that the LD50[1] for some substances is just a few as low as a few micrograms. Dioxins, for example, have an LD50 of just20 mcg/kg of bodyweight.
Footnotes.
1. The median lethal dose, LD50 (abbreviation for "lethal dose, 50%"), LC50 (lethal concentration, 50%) or LCt50 (lethal concentration and time) of a toxin, radiation, or pathogen is the dose required to kill half the members of a tested population after a specified test duration. LD50 figures are frequently used as a general indicator of a substance's acute toxicity.
What term means the increase of average yearly temperature?
The term is "global warming," which refers to the long-term increase in Earth's average surface temperature.
How does the atmosphere link to global warming?
Global warming is linked to the atmosphere on multiple fronts:
Solar Radiation: The sun warms the greenhouse gases in the atmosphere.
Atmospheric Composition: The composition of the atmosphere determines the severity of the greenhouse effect. Since the Industrial Revolution we have been releasing more and more carbon dioxide by burning fossil fuel (300 million-year-old carbon). This extra carbon is causing the accelerated greenhouse effect.
What are the sources and sinks of sulphur oxide pollution?
Sources of sulphur oxide pollution include burning of fossil fuels, industrial processes, and volcanic eruptions. Sinks for sulphur oxide pollution include rainfall (which forms acid rain), the ocean, and chemical reactions in the atmosphere that help remove sulphur compounds.
How will the Daintree Rainforest be affected if Climate Change and Global Warming continue?
Continued climate change and global warming could lead to higher temperatures, changing rainfall patterns, and more frequent extreme weather events, all of which could disrupt the delicate balance of the Daintree Rainforest's ecosystem. This can result in loss of biodiversity, increased risk of fires, and potential habitat degradation for the unique flora and fauna that call the rainforest home. Protecting and preserving the Daintree Rainforest through sustainable practices and conservation efforts is crucial to mitigate these potential impacts.
Why is the ice of the polar bear melting?
The ice at the North Pole is constantly melting because: Pollution clogs up the atmosphere, so it traps greenhouse gases inside the Earth. Greenhouse gases keep us warm, so they're normally a good thing, but now we have wayyyyy to much. Polar bears need ice to live on. (hello, they can't swim forever!) Also, they catch their fish through holes in the ice.
Global Warming is the recent sudden (over 200 years) way the Earth is getting warmer. The word 'global' means 'worldwide' and the warming is of the atmosphere, the oceans and the surface of the earth.
The earth has always warmed and cooled in the past, but this has always taken thousands of years to occur. When we talk about Global Warming now, we are referring to the unprecedented changes in temperature since the Industrial Revolution.
According to the Intergovernmental Panel on Climate Change (IPCC), temperatures, averaged over all land and ocean surfaces, have warmed roughly 1.33 degrees F (0.74C) over the last century, (see page 2 of the IPCC's Climate Change 2007: Synthesis Report Summary for Policymakers Link below.). More than half of this warming, about 0.72F (0.4C), has occurred since 1979.
Answer:
Global Warming, Global Climate Change and other terms are used to describe the observed and scientifically verified changes in the Earth's temperature, climate and weather patterns over the past several decades. The cause of this change is attributed to the manmade increases in several heat retaining gases collectively referred to as Greenhouse gases which include carbon dioxide and methane which result from human activities and emissions which include the use of fossil fuels, agricultural practices and deforestation.
Answer:
Global warming: Global means all over the world. Warming means getting hotter.
It is the way the earth is getting warmer, because of extra greenhouse gases that man is adding to the atmosphere. These extra gases (carbon dioxide and methane, mostly) are making the earth warmer. This warming is causing the climate to change.
The early signs of climate change are showing up across vastly differing landscapes: from melting outposts near the Arctic Circle to disappearing glaciers high in the Andes; from the rising water in the deltas of Bangladesh to the "sinking" atolls of the Pacific. Reports from a Warming Planet takes you to parts of the planet where global warming is already making changes to life and landscape, and demonstrates how climate change is no longer restricted to scientific modeling about the future. It's happening now.
How is your current energy use increasing greenhouse gases?
Our current energy use is contributing to an increase in greenhouse gases through the burning of fossil fuels such as coal, oil, and gas. When these fuels are burned, they release carbon dioxide and other greenhouse gases into the atmosphere, trapping heat and causing global temperatures to rise, leading to climate change.
How much funding does the IPCC receive from the federal government?
According to Rep. Blaine Luetkemeyer (R-MO), the US currently funds the IPCC to the tune of $12.5 million a year (increasing to $13 million in 2012), although this figure is disputed by Rep. Henry Waxman (D-California) claiming that the IPCC receives $2.3 million in federal funding.
However this may be a moot point as, following debate the House of Representatives, on Saturday 19 February 2011, voted 244 to 179 to eliminate funding for the United Nations IPCC.
What is the formal opinion of the American Association of Petroleum Geologists on climate change?
As of 2007, the last organisation of national standing to hold a formal opinion against the key points on climate change was the American Association of Petroleum Geologists. Is that still the case?
