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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
Under what condition is pressure altitude and density altitude the same value?
Pressure altitude and density altitude are the same value when the atmospheric conditions are standard (i.e., International Standard Atmosphere conditions). This typically occurs at sea level with a standard barometric pressure of 29.92 inHg and a standard temperature of 15 degrees Celsius.
The chief source of atmospheric heat is?
The chief source of atmospheric heat is the sun. Solar radiation enters the Earth's atmosphere, heating the surface of the planet and creating weather patterns. This heat is then redistributed through various atmospheric processes such as convection, conduction, and radiation.
How does the rainforest effect global warming?
See the link to the drought study below.
How much carbon dioxide does a car produce per kilometer?
This depends upon the vehicle. A Hummer H2 averages 4.25 to 5.1 km per liter. An all electric vehicle powered by solar charged batteries emits virtually no CO2 at all. In the US cars only recently topped 10 km/liter. Since a liter of fuel emits 1.68 kg of CO2, a tenth of that is 0.17 kg of CO2 per kilometer.
0.17 kg/km translates to 0.6 lbs per mile, for those following along in the US.
What is the effect of the enhanced greenhouse effect?
An increase in the natural process of the greenhouse effect, brought about by human activities like burning fossil fuelsand deforestation, whereby greenhouse gases such as carbon dioxide, methane, chlorofluorocarbons and nitrous oxide are being released into the atmosphere at a far greater rate than would occur through natural processes and thus their concentrations are increasing. Also called anthropogenic greenhouse effect or climate change.
What substance within the air is connected with global warming?
Carbon Dioxide takes a distant second place with around 5% to 20% of all forcing.
What is meant by the term greenhouse effect listing the three most significant greenhouse gases?
The term "greenhouse effect" is made up of two different effects: "Natural and Man-made". There is a "natural" greenhouse effect that keeps the Earth's climate warm and habitable. There is also the "man-made" greenhouse effect, which is the enhancement of Earth's natural greenhouse effect by the addition of greenhouse gases from the burning of fossil fuels (mainly petroleum, coal, and natural gas).
The three most significant green houses gases and the amount they contribute are water vapor (80%), carbon dioxide (6%) and methane (1%). Nature produces 99.7% of all green house gas emissions.
How can the greenhouse effect lead to a rise in sea level?
The greenhouse effect basically consists of solar radiation not being able to be deflected back into space and thus getting trapped in the earth's atmosphere.
This causes the average global temperature to go up which in turn causes large ice sheets and glaciers to melt (ie, Greenland, Antarctica) which adds incredible amounts of water to the earth's oceans, eventually causing a rise in sea levels.
Why the normal pH of rainwater is acidic?
Rainwater is normally acidic because the carbon dioxide in the air which mixes with rainwater to form weak acid. That's why its acidic ^_^
Rainwater is also because of the pollutions in the air and it mixes with the water so its not good.
meee!
How might increased carbon dioxide in the atmosphere benefit plants?
Increased carbon dioxide (CO2) in the atmosphere may increase the growth and yield of some plants. However, there may be drawbacks. A 2012 study has shown that wheat production (the world's most important crop) will rise through global warming, if there is enough rain, but the wheat holds less nourishment than before.
The study included 43 field experiments with 17 different varieties of wheat, carried out in ten countries across four continents. They all showed the same result.
See the link below.
What kind of a front forms where a warm air mass moves over a cold air mass?
A warm front forms when a warm air mass moves over a cold air mass. As the warm air rises over the denser cold air, it cools and condenses, leading to the development of clouds and precipitation. Warm fronts usually bring steady, light to moderate precipitation and result in gradual weather changes.
What is a sentence with greenhouse effect?
The greenhouse effect is the natural way that the Earth keeps warm.
Too many extra greenhouse gases turn the greenhouse effect into an enhanced greenhouse effect.
The enhanced, or accelerated, greenhouse effect is causing global warming.
Does an oil burning furnace release carbon dioxide fumes?
Yes, oil burning furnaces release carbon dioxide as a byproduct of combustion. It is important to ensure proper ventilation to prevent build-up of carbon monoxide, a potentially harmful gas produced by incomplete combustion. Regular maintenance and proper installation of the furnace are crucial for safety.
Why can't scientists make new ozone gas and release it over the areas where ozone hole has formed?
Creating ozone gas artificially is not feasible on a large scale due to the complexity of the chemical reactions involved. Additionally, releasing ozone directly into the ozone hole would not address the root cause of ozone depletion, which is primarily due to human activities releasing ozone-depleting substances into the atmosphere. The focus should be on reducing these harmful emissions to protect the ozone layer.
What can kids do to slow down global warming?
You can let your parents and other adults know you care. This will be your world when you grow up, and today's adults should leave it in a state fit for human society. You can talk to your parents about replacing old-fashioned incandescent light bulbs with the new ones that use less electricity. If it is not far, you can offer to walk to the shops to save taking out the car and burning fuel.
What percent of incoming radiation from the Sun is absorbed by Earth's surface?
Approximately 51% of incoming solar radiation is absorbed by Earth's surface. The rest is reflected back into space or absorbed by the atmosphere.
Does global warming have anything to do with the carbon dioxide level in the air?
Yes, Global Warming is directly related to the amount of carbon dioxide (aka CO2) in the earth's atmosphere.
Carbon dioxide is a known greenhouse gas. Greenhouse gasses prevent solar radiation from being reflected back into space and thus trap the heat inside the earth's atmosphere.
The Intergovernmental Panel on Climate Change (IPCC) created specifically in 1988 to study human created climate change, stated in its latest 2004 report:
- Global atmospheric concentrations of carbon dioxide, methane, and nitrous oxide have increased markedly as a result of human activities since 1750 and now far exceed pre-industrial values over the past 650,000 years.
- Most of the observed increase in globally averaged temperatures since the mid-20th century is very likely (>90%) due to the observed increase in anthropogenic (human) greenhouse gas concentrations.
Note that nature emits about 97% of carbon dioxide, mostly via vegetation and oceans. But unlike the remaining 3% human emitted carbon dioxide, nature also captures carbon dioxide, actually more than it emits. This process is called the Carbon Cycle and via this process earth has always been able to keep atmospheric carbon dioxide levels more or less stable.
But that level has changed drastically since the Industrial Revolution when us humans started to emit additional carbon dioxide through the burning of fossils fuels (mainly oil, natural gas and coal). As stated, humans only add carbon dioxide to the atmosphere, we do not remove any. As a result, the amounts of carbon dioxide in the air are at its highest levels and, as predicted by climate scientists world-wide and the IPCC, average global temperatures haven risen and are still rising.
A: It is also very true that temperature is very much related to the levels of CO2 in our atmosphere. As temperature rises we see that CO2 slowly follows that rise (lags about 800 years). This means that with increasing temperature, we should see a CO2 level rise. In the past 150 years we have seen a rise in CO2 levels of somewhere between 0% and 0.007% in terms of the total atmospheric change. (The number depends on how we decide to view historical levels). There is zero doubt that the levels of CO2 have risen in the past 30 years by as much as 0.001% (370 to 400 ppm)
What is it called when carbon dioxide is released?
The release of carbon dioxide is called carbon dioxide emissions. This occurs when carbon dioxide gas is released into the atmosphere from various sources such as burning fossil fuels, deforestation, and industrial processes.
During photosynthesis green plants remove carbon dioxide from the air and produce?
6 CO2 + 5 H2O --> C6H10O5 + 6 O2
Photosynthesis:
carbon dioxide and water --> carbohydrate and oxygen (!)
The 2001 report of the Intergovernmental Panel on Climate Change concluded that most of the observed increase in globally averaged temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic greenhouse gas concentrations.
How has global warming affected life in antaratica?
Global warming is causing the ice packs to melt, which then has water runoff that flows over the ice packs melting the surface and into the ocean and melting the bottom of the ice as well. This in turn causes the packs to melt faster.
The decrease in size of the ice packs decreases the surface that reflects the sun's rays, which are then absorbed into the ocean more and on tundra surfaces. Thus heating up the earth more.
All the above causes a cycle of melting and heating which now cannot be stopped.
A:Global warming is a phenomenon whereby the earth's average temperature increases. There are a couple ways that the earth's temperature is measured. The atmospheric temperature is what most people refer to when they discuss global warming. There is also tertiary temperature, which is the temperature of the land itself. The earth has experienced periods of global warming in the past.In simple terms, a rise in temperature would cause any frozen water to begin melting, which is how the polar ice caps would be affected. However, due to the result of extreme weather also caused by global warming, it isn't immediately clear if global warming will cause a complete melting of the ice caps. For example, global warming causes more extreme temperature fluctuations so, while one year the ice caps shrink to record lows, the next year that might expand again. Also, it's been observed that when the north pole ice cap melts, the south pole ice cap expands. Scientists are still studying global warming effects, and have not reached a consensus about what will happen in the future.
The only thing for certain is that the ice caps fluctuate much more than in the past due to extreme weather and temperature fluctuations.
Changing wind patterns also causes the ice caps to melt. As they melt, the moving water corrodes at the remaining ice, speeding up the process.
How have green plants and other organisms changed the composition of the Earths atmosphere?
Hugely. Before the evolution of the first organisms capable of photosynthesis around 3 billion years ago, the atmosphere of the early earth contained almost no Oxygen. By the conversion of Carbon Dioxide and Water into organic compounds and Oxygen through photosynthesis, cyanobacteria, and later algae and plants, have raised Oxygen levels to around 21% of the atmosphere today. Without this high level of Oxygen, the huge diversity of multi-cellular life depending on Oxygen for aerobic respiration would not exist.
Why scientist are worried about climate change?
Scientists are concerned about climate change because it is causing rising global temperatures, sea level rise, extreme weather events, and disruptions to ecosystems. These changes have serious consequences for human health, food security, water resources, and overall sustainability. Urgent action is needed to reduce greenhouse gas emissions and mitigate the impacts of climate change.
Why it is important to monitor greenhouse gases?
Monitoring greenhouse gases is important because they contribute to global warming and climate change. By constantly monitoring their levels, we can assess the impact of human activities on the environment, track progress in reducing emissions, and inform policies and strategies to mitigate their effects and promote sustainability.
What heats up and cools down quickly?
Metals are known to heat up and cool down quickly due to their high thermal conductivity. Conversely, materials with low thermal conductivity, such as wood or plastic, tend to heat up and cool down more slowly.
