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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 are chlorofluorocarbons and why are they dangerous to the ozone layer?

Chlorofluorocarbons (CFCs) are man-made compounds used in refrigeration, air conditioning, and aerosol sprays. When released into the atmosphere, they break down and release chlorine which destroys ozone molecules in the ozone layer. This depletion of the ozone layer allows more harmful ultraviolet radiation from the sun to reach the Earth's surface, leading to increased risks of skin cancer and other health issues.

How is climate change connected with environmental pollution?

Air pollution is bad for the earth, it kills the animals and the people too. And we have anough of that in wars, but global climate change is when the wheather is differing, and changes to different temperatures.

Thankyouh

How does the greenhouse effect trap the heat?

Visible light passes through the atmosphere readily with little absorption. This light energy hits the surface of different materials and the planet itself. Some of this energy is converted into thermal energy which can more readily be absorbed by the greenhouse gases. Water vapor, the most common greenhouse gas is able to dispel this energy through rain, and the other gases keep us alive and warm through the night. Without greenhouse gases, we would be unable to survive on this planet.

What form of ozone is considered a secondary pollutant?

secondary pollutants are pollutants that form from chemical reactions that occur when primary pollutants come in contact with other primary polluants or with naturally occurring substances such as water vapor.

What is the amount of carbon dioxide emitted by burning one pound of fossil fuels?

The amount of carbon dioxide emitted by burning one pound of fossil fuels varies depending on the type of fuel. On average, burning one pound of fossil fuels like coal, oil, or natural gas can produce around 3-4 pounds of carbon dioxide.

What things should you encourage others to do to decrease global warming?

Encourage others to reduce energy consumption by using energy-efficient appliances, carpooling or using public transportation, and supporting renewable energy sources. Advocate for policies that promote sustainability and reduce carbon emissions. Raise awareness about the impact of climate change and the importance of taking action.

What is the recent news on the ozone layer?

One recent development regarding the ozone layer is that a study in 2021 found that the ozone hole over Antarctica has been slowly healing since the ban on ozone-depleting substances was implemented in the 1980s. However, another study in 2022 identified new sources of ozone-depleting chemicals that could potentially slow down the recovery process.

What would happen to the carbon dioxide and oxygen levels if there were too many animals?

Assuming too many terrestrial animals doesn't really disturb things too much. The animals eat the plants, then die. Atmospheric carbon increases from loss of terrestrial biomass, acidifying the oceans. What effect this would ultimately have on Cyanobacteria, earth's primary oxygen liberators, i'm not sure. If there were too many of the marine insects that eat the blue green algae, over a period of millions of years oxygen levels should fall, whether there were other animals to respirate it or not. Free oxygen readily chemically bonds with so many things. Hydrogen, iron, silicon, carbon, etc.

Why does the level of carbon dioxide in the atmosphere rises slightly in the summer and falls in the winter?

In a typical year the levels are high in May and low in October.

The Northern Hemisphere has much more land for vegetation to grow on compared to the Southern Hemisphere. Carbon dioxide (CO2) builds up slowly during the northern winter, when trees and plants are dormant. Then in May everything begins to grow, and CO2 is taken out of the atmosphere, so the levels start coming down. In October and November vegetation stops growing, and in its dormant state it stops absorbing CO2, so the carbon in the atmosphere increases. These levels go up and down like this every year.

The readings for 1958, 1959 and 1960 show this:

1960: May: 320.5 ppm: October: 314.5 ppm

1959: May: 320.0 ppm: October: 313.5 ppm

1958: May: 318.0 ppm: October: 313.0 ppm

Ppm means parts per million, so 320 ppm is the same as 0.032 percent (per hundred).

The recent readings for May are:

2012: 396.78 ppm
2011: 394.35 ppm

2010: 393.22 ppm

2009: 390.18 ppm

See the graph at the link below.

What would happen to our carbon dioxide levels if you had to many animals in a biodome?

If the environment is unable to wash the CO2 from the atmosphere, the concentrations would rise. Eventually, animals could start to die if the plant life did not flourish to the point of balance.

How does carbon cycle through earth's four spheres?

Carbon dioxide constantly moves into and out of the atmosphere through several major pathways. Over short time scales, the processes of photosynthesis, respiration, organic decomposition (decay), and combustion (burning of organic material) increase or decrease the concentration of atmospheric CO2. Carbon dioxide is also exchanged between the atmosphere and oceans by gas exchange over short time scales. Each year, approximately one-fifth of the carbon (in the form of CO2) in the atmosphere is cycled in and out.

Do afarejuvi caps work?

There is limited scientific evidence to support the claimed benefits of Afarejuvi caps. They may not work as effectively as advertised, and it's always best to consult with a healthcare professional before trying any new supplement.

How plants change climate?

This is a very broad question as plants can affect weather in a variety of different ways. One way plants can affect weather is through respiration. By simply doing what plants do, that is grow, they take in and give of a variety of gases. During photosynthesis they bring in carbon dioxide (a greenhouse gas that can raise temperature in the atmosphere) and they release oxygen.

Plants can also effect weather in that they can block wind, sunlight, and precipitation among other things.

What greenhouse gases has been impacting the climate for the least amount of time?

Sulfur hexafluoride (SF6) is a greenhouse gas that has a relatively short atmospheric lifetime compared to other gases like carbon dioxide and methane. It is a potent greenhouse gas and is used primarily in electrical transmission and distribution systems.

What will happen to earth if the greenhouse gases in the atmosphere increase?

There are many different claims made by many different groups for a variety of different reasons. Let's assume that CO2 levels will keep rising for the next 100 years or so, what are the KNOWN consequences of this action? The answer is that is do not know.

There are many predicted possibilities.

Some claim an increase in tropical storms. Other groups predict a lessening of storms. The truth could be either way, currently we are in a 30 year low of overall hurricane activity.

Some claim that temperatures could rise. Other groups claim that after 100 ppm carbon dioxide saturates in terms of the driving ability. The truth could be either. We do know that temperatures have risen 0.2 degrees since 1934. This coincidences with a 80 time increase in CO2 production by man.

What we do know is that continued use of fossil fuels is not a good thing and that decreasing this dependency is a good idea.

How much of the sun heat will be reduced if all the water on earth on the sun?

If all the water on Earth was suddenly transported to the Sun, the impact on the Sun's temperature would be negligible. The Sun's immense size and heat make the water from Earth a minuscule addition in comparison. The Sun's temperature and energy output would not be noticeably affected.

How much energy is given off when 17.0 mol of water is frozen The heat of fusion for water is 6.01 kJ molb?

The amount of energy given off when 17.0 mol of water is frozen can be calculated by multiplying the number of moles by the heat of fusion. Energy = 17.0 mol * 6.01 kJ/mol = 102.17 kJ.

How will we build houses stronger because of the floods in climate change or global warming?

Strength is not really the issue when it comes to floods. Stronger houses are more able to withstand earthquakes, but they can be flooded just as easily. The key to surviving floods is to build your house at a higher elevation. Another alternative would be to live on a houseboat. If it's already floating, it won't flood.

There are also other ways to build houses that are less vulnerable to floods. In some areas houses are built on stilts. Certainly if you are expecting floods, you would not build a basement, which is the part of the house that is most vulnerable to flooding.

Why is it so bad to cut down trees in the rain forest?

well cutting down trees weather in rain forest or not is bad because of many reasons like - every tree plays an important role in our ECO system via

holding the soil together where it stands

a tree is a home of many organisms

many organisms relay on tree for there food

and think that why does it rains so much in Rain forest ? because water evaporates from the leaves of tree , accumulate and form a cloud which results in rain and each tree makes a difference .

Is NH4 a green house gas?

Greenhouse gases are :



So NH4 is not one of them !

Is there any evidence that global warming is responsible for melting the worlds glaciers?

It's logical. If the earth is warming, and scientists (and our own experiences) tell us that it is, then one of the effects of a warming atmosphere is that it warms things in the atmosphere. Glaciers are exposed to the air, the air is warmer, and so the glaciers melt. Therefore, global warming is responsible for melting the world's glaciers.

How are placing limits on water usage the burning of fossil fuels and the cutting of trees the same?

They are not the same. Placing limits on water use is a localised regulation to make sure your town doesn't run out of water. The burning of fossil fuels and the cutting down of trees are the two factors that are causing global warming. A much more serious issue!

What percentage does co2 contribute to green house gases?

The most abundant greenhouse gas is water vapor. Although not as potent as other greenhouse gases pound for pound, by sheer volume water vapor is the key greenhouse gas.

Carbon dioxide is the second largest (by volume) greenhouse gas. Methane and nitrous oxide complete the four primary greenhouse gases, but there are only trace amounts of these in our atmosphere. Since water vapor is about 4% of the atmosphere, and CO2 concentrations are 400 parts per million, 0.04/0.0004 = 1%. In other words, CO2 is roughly 1% of the greenhouse gas.

What would happen if the greenhouse gas levels doubled?

It depends on which greenhouse gas doubled its concentration.

Water vapour is the most plentiful greenhouse gas, but only remains in the atmosphere for a few days and precipitation will prevent its concentration from doubling.

Carbon dioxide levels have indeed increased by 35 per cent since pre-industrial times and the rate of increase in concentration is growing rapidly, so in the absence of any action at all, would certainly double. The present concentration is just over 380 parts per million (ppm), and doubling this to around 760 ppm would be disastrous. Long before this level was reached, the governments of the world would place our global economy on a war footing and mandate a zero-carbon economy no matter what the pain caused by this. Clearly, we never wish to get to the point that this action became necessary.

Methane levels have also increased since pre-industrial times but the rate of increase in concentration is growing more slowly. The disaster that could result from doubling atmospheric methane concentrations means that it could never be allowed to happen.

If greenhouse gas levels reach the point where there is a 'runaway greenhouse effect' because of positive feedback resulting from higher temperatures, then there will no longer be any action that we can take to prevent its continuance. We would simply have to accept the consequences.

How does heat get distributed in the atmosphere and the ocean?

In the atmosphere, heat is distributed through processes like convection, conduction, and radiation, with warm air rising and cool air sinking. In the ocean, heat is distributed mainly through ocean currents, which transport warm and cold water around the globe. These processes play a crucial role in regulating Earth's climate system.