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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 happens to solar energy as it enters the atmosphere?

About half of it is absorbed, reflected, or scattered within the atmosphere. The remainder reaches the earth, where it heats it. This radiation emitted by the earth heats the lower atmosphere and generates the earth's weather.

A:Some is absorbed to make ozone (UV-C and more energetic), some is absorbed to break ozone back down (UV-B and more energetic). Some is absorbed and radiated back to space (infrared and less energetic) or captured by greenhouse gases. Lots of it is passed down to Earth's surface (UV-A thru the near infrared).

What is the earth's temperature with carbon dioxide?

The presence of carbon dioxide in the atmosphere acts as a greenhouse gas, trapping heat and leading to an increase in the Earth's temperature. This phenomenon is known as global warming and is contributing to climate change by causing shifts in weather patterns and rising sea levels.

What kinds of global issues does the UN care about?

The UN was created, following WW II, to prevent war between nations. Hence, issues of war an peace are always the primary concern of the UN. But beyond that, they are concerned with many other things that affect the world in general, including health, education, poverty, literacy, global trade, environmental protection, etc.

What are the effects of increasing carbon dioxide?

I am not sure... I do not believe there is one only because plants take in our carbon dioxide that we breathe out. Humans then take in plants oxygen that plants breathe out. There isn't really a negative effect of carbon dioxide because of humans. We don't cause the negative effects. I am not positive if this is the answer to your question but this is what I thought of when I read it.

What can be done to reduce the impact of global warming?

There are a couple ways the average person can help with global warming. You can plant trees, (planting four is the equivalent to taking 100,000 car's carbon dioxide off the road for a year!) You can buy energy efficient light bulbs, (produces a lot less carbon dioxide, doesn't get as hot, is brighter and saves you cash!) You can buy an energy efficient car, (some diesel cars run on vegetable oil!) Turn off those lights, (don't forget to unplug them as well, or they will waste the same amount of carbon dioxide as if they were on!) If you have a pool don't heat it in the summer, (let Mother Nature do it for you.)Buy foods from your state or country, (the cars transportation your food won't waste as much carbon dioxide. These are just a few of the ways you can do your part to stop global warming. From- Q&A master

Which gas has increase over last 100 years?

Carbon dioxide (CO2) levels have increased significantly over the last 100 years due to human activities such as burning fossil fuels and deforestation. This increase in CO2 is a major contributor to global climate change and the warming of the planet.

Which greenhouse gas is the result of deforestation?

Carbon dioxide is a greenhouse gas that is released as a result of deforestation. When trees are cut down or burned, they release stored carbon into the atmosphere, contributing to the greenhouse effect and climate change.

What is global warming and why do most people believe in it?

Global warming is the serious and rapid warming of the earth that has occurred in the last 100 years. Most people believe in it because science has shown that it is happening and people understand why it is happening.

What substances are produced by burning fossil fuels?

Burning fossil fuels produces carbon dioxide, a greenhouse gas that contributes to climate change, as well as other air pollutants such as sulfur dioxide, nitrogen oxides, and particulate matter. These pollutants can have negative impacts on air quality, human health, and the environment.

What type of air mass forms when a cool and warm air mass meet?

When a cool air mass and a warm air mass meet, a stationary front is formed. This occurs when the boundaries between the two air masses do not move, leading to relatively stable weather conditions in the region.

Did polythene effects on ozone layer?

Essentially, polypropylene benefits the environment in various aspects. Because it is a thermoplastic, it can be melted countless times. At the same time, it has a high melting point of 170oC so it can be sterilized and used repeatedly in a hospital setting:

ex: oxygen masks. Its durability and high tensile strength mean that it does not need to be replaced on a daily basis. All in all, it benefits the environment at its physical properties allow it to be used over and over again. :)

Is water vapor a greenhouse gas?

Yes, water vapor is a greenhouse gas. It contributes to the greenhouse effect by trapping heat in the Earth's atmosphere. However, its levels and impact on climate change are influenced by various factors, such as temperature and atmospheric circulation.

What is black house effect?

The "black house effect" is a term used to describe the phenomenon of urban areas experiencing higher temperatures compared to their rural surroundings due to the absorption and retention of heat by dark surfaces like asphalt and buildings. This can result in increased energy consumption, higher cooling costs, and potential health risks during heatwaves. It is a type of urban heat island effect.

What is an albedo effect?

The albedo effect refers to the ability of a surface to reflect sunlight. Surfaces with high albedo reflect more sunlight, while surfaces with low albedo absorb more sunlight, leading to different impacts on local and global temperatures. This effect is particularly important in understanding climate change and land surface interactions.

Background of the study of global warming?

The study of global warming involves researching the Earth's changing climate patterns caused primarily by human activities such as deforestation and burning of fossil fuels. Scientists analyze greenhouse gas emissions, temperature fluctuations, and their effects on ecosystems to understand the extent of global warming and its potential consequences for the planet. This field of study seeks to raise awareness, develop solutions, and mitigate the impact of climate change on our environment.

Why is clean up important?

Clean up is important because it helps maintain a clean and organized environment, which can improve safety, prevent accidents, and promote overall well-being. It also helps to reduce the spread of germs and pests, as well as improve aesthetic appeal.

Why earlier CFC emmision were less?

Earlier CFC emissions were less because they were mostly released through industrial processes like refrigeration and aerosol production before regulations limited their use. As awareness of their harmful effects on the ozone layer grew, international agreements such as the Montreal Protocol were put in place to phase out CFC production and use. This has significantly reduced CFC emissions over time.

Does garbage produce green house gases?

Yes, bio-degrading garbage produces methane, a dangerous greenhouse gas. Many landfills around the world are trying to capture this methane and use it to generate electricity. Not many are doing it successfully.

Pig farms are trying to do the same with their large amounts of animal waste.

How tanning effect the environment?

Its not such harmful as you stated. Its very nice recycling process of environment, the dead castles skin recycle to usable leather but its production waste should be properly managed because it would be much harmful for environment.

Answer:

Thee aare two processes known as tanning. One is acquiring a sun tan on a beach or similar, and the other is converting animal hide into leather.

  • The first meaning has little or no environmental impact except to the tanned individual who is ramping up his or her chances of skin cancer.
  • The second meaning iis an industrial process which involves organic materials, strong chemicals including alkalis, acids and heavy metal salts, odours and other factors. With proper controls this operation emits few pollutants.

What does 'climate sensitivity' mean?

Climate sensitivity determines how sensitive our planet is to radiative forcing, that is, to heat added to or removed from the atmosphere. It is usually expressed as the amount of global warming for doubled carbon dioxide (ie, from 280 ppm to 560 ppm). Many studies have shown this to be 3.7 Watts per square metre (W/m2) (IPCC AR4 Section 2.3.1). If there were no positive or negative feedbacks the global rise in temperature if carbon dioxide (CO2) doubled would be about 1° Celsius.

However, our climate has feedbacks, both positive and negative. The strongest positive feedback is water vapour. As the atmosphere warms, it holds more water vapour, a greenhouse gas, which increases the warming. This increased warming means more water vapour, and so on. Water vapour also has negative feedbacks - more clouds can have a cooling effect (reflecting radiation) and a warming effect (preventing heat loss to space). (Other feedbacks include the ice-albedo feedback and the lapse rate feedback.)

So to determine the net feedback, studies have looked at climate models, climate data from instruments and satellites, volcanic eruptions and palæoclimate models from the past. The studies all yield a broadly consistent range of climate sensitivity with a most likely value of 3°C for a doubling of CO2.

What are characteristics of renewable energy and characteristics of nonrenewable energy?

Renewable energy:

  • comes from the sun, the wind, the waves and the heat deep down in the earth
  • is free
  • keeps coming back next day even if you use as much as you can today
  • doesn't cause pollution
  • doesn't emit carbon dioxide, a greenhouse gas
Non-renewable energy:
  • comes from coal, oil and natural gas
  • won't last for ever
  • gives off carbon dioxide when burns, and other polluting chemicals
  • contributes to greenhouse gas in the atmosphere, increasing global warming

What will happen if there is a flood?

the consequences are death and destruction of property in countries like Bangladesh crops are destroyed which they depend on to make money also many poor countries get flooded so they may go in debt to pay the price of repairing there country.

How do air currents affect heat in Earths atmosphere?

Air currents help to distribute heat in the Earth's atmosphere by transferring warm air from the equator towards the poles and cooler air from the poles towards the equator. This process, known as atmospheric circulation, plays a key role in regulating global temperatures and climate patterns. Additionally, air currents can also transport moisture and influence weather patterns.

What is a glacial budget?

A glacial budget is the balance between the accumulation (formation of snow and ice) and ablation (loss of ice through melting, sublimation, or calving) of a glacier. It is an essential concept in understanding how glaciers grow, shrink, or remain stable over time. Monitoring changes in the glacial budget helps scientists assess the impacts of climate change on glaciers.