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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 can be compared with global warming?

  • A huge meteor striking the earth and wiping out every living thing.
  • Cooking frogs in a pan of cold water. The heat increases slowly, but the frogs say, "Oh, we've had warm days in the past!" So they don't jump out. After a while they say, "Well, okay, it's getting warmer all right, but it's nothing we did. The earth is just warming after the last Ice Age!" Some of the very old and very young frogs die, but the others don't worry and do nothing. There's a lot of energy in the water now. "We've had cyclones before!" say the frogs as the water surges and boils around them. Alas! Then it's too late! The frogs say no more.

Does the melting of polar ice caps cause global warming?

NoWhile shining intense UV light on ice will cause it to melt, that is not an important cause of the ice caps melting. First, there isn't so much UV light reaching the surface of the Earth (thanks to ozone in the atmosphere), and second there are other effects that are much more significant (greenhouse gases and the increasing average temperature of the earth for instance).

The thinning of the ozone layer that is referred to as the ozone hole, only occurs during the winter months above each pole. This means that even if UV-B did help melt ice, the issue would be nullified by a lack of sunlight during these periods. The hole repairs itself as soon as the sun is restored.

What evidence did astronomers have that Neptune existed before they actually observed it?

Prior to the observation of the planet Neptune by a telescope, the orbits of the other planets in our solar system were observed very closely, and subjected to mathematical analysis, and it was possible to figure out that the gravitational attraction of some undiscovered planet was affecting those orbits. Technically this phenomenon is called gravitational perturbation.

How does the construction industry contribute towards carbon dioxide emission?

The construction industry contributes to carbon dioxide emissions through the use of heavy machinery and equipment that run on fossil fuels, the production of cement, which is a major source of carbon dioxide, and the transportation of materials to and from construction sites. Additionally, energy-intensive processes like heating, cooling, and lighting buildings also contribute to carbon emissions in the construction sector.

What are the effects caused by excessive carbon dioxide?

Carbon dioxide is the gas that is expelled from the body when a person exhales. Exposure to too much carbon dioxide can result in headaches, deeper breathing, unconsciousness, and death. However, it is very unlikely that a person would experience carbon dioxide poisoning.

What does mitigate global warming mean?

Mitigate means to soften or make easier, so with global warming it means to reduce it. The way, of course, to reduce global warming is to plant billions of trees and to stop burning fossil fuels (coal, oil and natural gas).

Will the melting of icebergs flood your coast?

The melting of icebergs themselves will not directly flood coastal areas as they are already in the water. However, the melting of icebergs and glaciers contributes to rising sea levels, which can lead to coastal flooding and erosion over time.

Is global warming one of the environmental challenges?

Yes, global warming is a significant environmental challenge. It refers to the long-term increase in Earth's average surface temperature due to human activities like burning fossil fuels, deforestation, and industrial processes, leading to climate change with severe impacts on ecosystems, weather patterns, and sea levels. Addressing global warming requires international cooperation, sustainable practices, and mitigation strategies to reduce greenhouse gas emissions.

What plants let out greenhouse gases?

Plants do not emit greenhouse gases. Instead, plants absorb carbon dioxide during photosynthesis and release oxygen. Other sources, such as decomposition of organic matter in soil or livestock digestion, can emit greenhouse gases like methane.

What percentage of incoming solar radiation is reflected back into space by plants?

About 45% of the sun's energy is reflected back into the greenhouse gases in the atmosphere from the energy (51%) absorbed by the earth's surface (lands and oceans). Clouds and the atmosphere have already absorbed another 19% of the incomingradiation.

Conduction and rising air take 7% into the atmosphere.

Latent heat in water vapour takes 23% into the atmosphere.

Directly radiated from earth is 15% into the atmosphere.

(The remaining 6% is directly radiated out to space.)

(Source: NASA. see the link and related question below)

How do water vapour carbon dioxide and methane cause global warming?

Water vapour, carbon dioxide and methane are all greenhouse gases. This means they absorb heat rising from the surface of the earth (infrared radiation). Human activity (burning fossil fuels (coal, oil and natural gas) and bad farming practices, mostly), is adding more carbon dioxide (CO2) and methane (CH4) to the atmosphere, so more heat is captured. This is global warming.

Did the carbon dioxide in the atmosphere start global warming?

Yes. Scientists believe that carbon dioxide in the atmosphere started increasing at the beginning of the Industrial Revolution with the burning of fossil fuels (coal, oil and natural gas) in industry, transport and later the generation of electricity.

What contributes to atmospheric carbon dioxide?

In the absence of anthropogenic activities, carbon dioxide (CO2) levels in the atmosphere would be fairly static. Animals exhale carbon dioxide, but vegetation converts this back into edible products that are then consumed by those animals. Similarly, rotting vegetation gives off carbon dioxide, but the vegetation is soon replaced by new vegetation that requires the same amount of carbon. The natural cycle contributes no net increase in carbon dioxide concentrations in the atmosphere. Even burning wood or paper has no net effect on atmospheric concentrations of carbon dioxide, although cutting down trees for wood or paper could do so if new trees are not allowed to grown and absorb as much carbon as the trees cut down. So, CO2 concentrations had remained around 260-280 parts per million (ppm) until the time of the Industrial revolution, when the level of CO2 began to rise in line with increasing use of fossil fuels.

The increase from 260-280 ppm to the present 390 ppm of atmospheric carbon dioxide is almost entirely due to human activities. The main cause is by burning fossil fuels such as coal, oil and natural gas. Another important cause is deforestation, mainly as land-clearing for farming.

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There is absolutely zero scientific evidence to make the claim that carbon dioxide has ever been "fairly static". The science behind the levels of carbon dioxide differ vastly from the political viewpoint stated.

CO2 has varied by about 800 years behind temperature. This is a well known trend for the past 650K years according to all available data. The current upward trend started well over 10,000 years ago, shortly after the temperatures started to rise. Carbon dioxide has always followed temperature. With the current warming trend now at over 10 degrees C, it is a normal and expected occurrence that CO2 levels would eventually follow. Levels as low as 190 ppm have been observed in the past 10,000 years, as well as levels (reported by Noble winning science experts from the 1800's) of well over 400 ppm. (Beck 2008). The overall trend for CO2 has been upward almost non stop for the past 9,300 years. There have been fluctuations, but this is the undisputed trend.

Man's production of less than 6% of all CO2 is possibly a partial contributor to the current levels of CO2. That is a very possible scenario. Nature's production of 94% is a known cause of increase. To blame man as the sole reason for increase though is misleading and absolutely false. We know that the levels of CO2 rose over 100 ppm prior to man starting to use any coal.

The one undisputed fact of CO2 increase is the know relationship between temperature and the levels of CO2 in our atmosphere. Temperature causes CO2 to rise. This is a known event. Human additions are a speculative (albeit possible) issue.

What would happen if you light a match near carbon dioxide?

I don't think anything would happen. In order for the methane to burn (or for that matter, the match to ignite) oxygen must be present. If the room contained 100% methane, there would be no oxygen for it to react with and therefore it would not combust (i.e. burn).

Why do you think that the global marketplace is increasingly becoming a level playing field?

The global marketplace is becoming increasingly level due to advancements in technology, which allow businesses of all sizes to access customers worldwide. Additionally, free trade agreements and reduced trade barriers have made it easier for companies to compete internationally. Lastly, the rise of e-commerce platforms has democratized access to markets, giving smaller businesses a chance to compete with larger corporations.

Which nations have a cap and trade or carbon tax system in place?

The following nations have a carbon trading system in place, or are committed to implementing one:

  • The member countries of the European Union
  • New Zealand
  • Some states of the United States of America

    - a federal scheme was blocked in the Senate in 2009

  • Some provinces of Canada
  • Japan - to a limited extent

China has committed to implementing a carbon price in 2011.

The Australian government has committed to implementing a carbon tax, to be replaced in due course by a carbon trading scheme, but as at April 2011 has not yet legislated for this.

How does trash cause greenhouse gases?

Anything organic in trash (anything that once was living, like plants and animals) will rot, especially in landfill. If it rots aerobically (in the presence of air) it produces carbon dioxide, the greenhouse gas that is the main cause of global warming. If organic garbage rots anaerobically (without any air around it) it produces methane, a greenhouse gas 21 times more powerful than carbon dioxide (though methane degrades after seven years, whereas carbon dioxide stays around for hundreds of years).

What is the Primary Cause Of Global Deflection?

The primary cause of global deforestation is human activities such as logging, agriculture expansion, urbanization, and infrastructure development. These activities result in the clearing of forests at an alarming rate, leading to loss of biodiversity, disruption of ecosystems, and acceleration of climate change. Efforts to address deforestation include promoting sustainable land management practices and conservation efforts.

What would happen if a person breaths in carbon dioxide by smoking?

When smoking, a person inhales not only carbon dioxide but also harmful chemicals such as nicotine, tar, and carbon monoxide. Inhaling these substances can lead to various health issues, including lung damage, respiratory problems, and an increased risk of developing conditions such as cancer and heart disease. It is best to avoid smoking altogether to protect your health.

Does polythene paper cause global warming?

Polythene paper does not directly cause global warming. However, the production of polythene, which is a type of plastic, releases greenhouse gases that contribute to global warming when not disposed of properly. It is important to manage and recycle polythene products to reduce their environmental impact.

When does ice storms usually happen?

Ice storms typically occur during the winter months when temperatures are at or below freezing. They often happen in regions where warm and moist air mass meets cold air mass, resulting in freezing rain that coats surfaces with ice.

Is global warming a theory accepted by a majority of scientists?

Yes, global warming is a widely accepted scientific theory supported by a vast majority of climate scientists worldwide. The overwhelming consensus is that human activities, such as the burning of fossil fuels, are a significant driver of the current global warming trend.

How does climate change affect golden lion tamarins?

Climate change can affect golden lion tamarins by altering their habitat, leading to changes in temperature, precipitation, and food availability. This can impact their ability to find suitable places to live and resources to survive. Additionally, climate change can also increase the risk of extreme weather events, which can directly threaten the tamarins' survival.

What are CFCs and what is their connection to the ozone problem?

The acronym CFC stands for chlorofluorocarbon, which means a compound that is made up of the elements chlorine, fluorine, and carbon. Some CFCs such as freon in particular, have been used as coolants in refrigerators, and for other industrial purposes, but when they leak out into the atmosphere (which, sooner or later they always do) they become a problem for the Earth's ozone layer, because they catalyse the decay of ozone into oxygen. This is a problem because we need an ozone layer to filter out excess ultraviolet radiation in sunlight.