What Is Global Warming
Global warming is the unusually rapid increase in Earths average surface temperature over the past century primarily due to the greenhouse gases released as people burn fossil fuels. The global average surface temperature rose 0.6 to 0.9 degrees Celsius between 1906 and 2005, and the rate of temperature increase has nearly doubled in the last 50 years. Temperatures are certain to go up further.
Despite ups and downs from year to year, global average surface temperature is rising. By the beginning of the 21st century, Earths temperature was roughly 0.5 degrees Celsius above the long-term average.
Climate Change And Foodby Mashael Khuda Karam
Climate change is a change in the statistical distribution of weather patterns when that change lasts for an extended period of time. Human activities that cause climate change are: Human burning fuel and coal which release too much greenhouse gasses into the atmosphere like carbon dioxide that traps the heat in the atmosphere which, leads to a faster climate change. People and companies started to cut down forests by cutting a huge amount of trees each year from 3.5 to 7 billion trees each year and then they sell the timber to other countries in order to make furniture. Smaller trees are used for the production of charcoal, and human agriculture by replacing large trees with smaller plants that absorbs fewer amounts of carbon dioxide from the atmosphere. Which is another reason why the rate of carbon dioxide keeps increasing.
Human activities have increased greenhouse gas concentrations in the atmosphere.
Scientists notices changes in average temperatures, rainfall, pests, diseases atmospheric carbon dioxide, ground-level ozone concentrations, and changes in the nutritional quality of some foods. Causes to all of these problems are human activities that lead to increasing amounts of greenhouse gasses in the atmosphere.
It is important to solve climate change because the impacts of it will put every organism on the Earth at a big risk.
What Is Climate Change
Climate change is a long-term shift in weather conditions identified by changes in temperature, precipitation, winds, and other indicators. Climate change can involve both changes in average conditions and changes in variability, including, for example, extreme events.
The earth’s climate is naturally variable on all time scales. However, its long-term state and average temperature are regulated by the balance between incoming and outgoing energy, which determines the Earth’s energy balance. Any factor that causes a sustained change to the amount of incoming energy or the amount of outgoing energy can lead to climate change. Different factors operate on different time scales, and not all of those factors that have been responsible for changes in earth’s climate in the distant past are relevant to contemporary climate change. Factors that cause climate change can be divided into two categories – those related to natural processes and those related to human activity. In addition to natural causes of climate change, changes internal to the climate system, such as variations.
In ocean currents or atmospheric circulation, can also influence the climate for short periods of time. This natural internal climate variability is superimposed on the long-term forced climate change.
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How Does The Greenhouse Effect Work
Although the process is complex, the greenhouse effect can be described fairly simply:
Sunlight passes through the atmosphere. Clouds, ice caps and other light-colored surfaces reflect some light back into space, but most of the incoming energy reaches the planets surface. The Earth radiates heat back toward space. Greenhouse gases in the atmosphere absorb that heat, bouncing some back to the Earths surface and releasing some into the atmosphere.
Ods Substitutes Are Now Raising Concerns
The reduction of ODS emissions is not a uniformly positive story. In fact it has indirectly led to new problems. Fluorinated gases have been introduced as substitutes for ODS in many sectors such as refrigeration and air conditioning applications. F-gases include hydrofluorocarbons , perfluorocarbons and sulphur hexafluoride . These gases do not deplete the ozone layer, but they are greenhouse gases. This means that these new gases also contribute to climate change. And to make matters worse, these F-gases often have a far larger impact on the climate than ‘traditional’ greenhouse gases such as carbon dioxide . For example, some F-gases have a greenhouse effect that is up to 23 000 times more powerful than the same amount of carbon dioxide. Fortunately, the emissions of F-gases are far smaller than those of CO2, but the use of F-gases and their presence in the atmosphere have increased since the 1990s. As a result, the significant contribution of the Montreal Protocol to fighting climate change is in danger of being wiped out by the growing importance of F-gas emissions.
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What Does Global Warming Have To Do With Severe Weather Like Storms Heat Waves Droughts And Hurricanes
A rise in global temperatures increases the severity and likelihood of storms, floods, wildfires, droughts, and heat waves. In a warmer climate, the atmosphere can collect, retain, and drop more water, leading to changing precipitation patterns. Increased precipitation can help support agriculture, but precipitation is increasingly coming in the form of more intense single-day storms, which damage property, infrastructure, and lead to loss of life in impacted areas. Over the past few decades, the United States has experienced more heat waves and fewer cold waves. Since the 1960s, the length of the heat wave season has increased in many cities by more than 40 days. Today, major U.S. cities average more than six heat waves per year, while in the 1960s, the average was two heat waves per year. Global warming also results in warmer sea surface temperatures because the majority of the heat trapped in the Earths atmosphere is absorbed by the ocean. Warmer sea surface temperatures make it easier for hurricanes to form. Because of human-caused global warming, it is expected that the rainfall rates from hurricanes will increase, the intensity of hurricanes will increase, and the proportion of storms that reach a Category 4 or 5 level will increase.
Select Time Period Comparisons of United States Billion-Dollar All Disasters
Inflation-adjusted cost of droughts, flooding, freezes, severe storms, tropical cyclones, wildfires, and winter storms.
Climate Scientists Agree That Humanity Is Responsible For The Vast Majority Of Global Warming
The Intergovernmental Panel on Climate Change, the United Nations Environment Programs climate body, has said for over a decade that there is unequivocal evidence that the planet is warming and that the temperature increase is very likely due to human-made greenhouse gas emissions.
The IPCC does not carry out research itself but bases its assessment on peer reviewed and published scientific/technical literature.
The Panel is made up of 2500+ scientific expert reviewers, 800+ contributing authors, and 450+ lead authors from 130+ countries.
Over 97% of peer reviewed journal articles on climate science agree with the scientific consensus around climate change.
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Top 10 Causes Of Global Warming
Global warming is the extra heat within the earths atmosphere which has caused the rise in global temperature. Global warming leads and continues to cause climate change. Climate change can cause rising sea levels, destruction of communities, as well as extreme weather conditions. Here are 10 causes of global warming that are contributing to the climate crisis.
What Is Climate Finance
Climate finance is the investment of private or public money into programs, actions, and projects aimed at reducing greenhouse gas emissions and increasing resilience to climate impacts. Different entities exist at the international, national, and local levels to facilitate the mobilization and deployment of climate finance. For example, the Global Environment Facility and the Green Climate Fund are two major climate finance vehicles at the international level, and green banks and infrastructure authorities play a similar role in states across the United States. These entities receive their funding from a variety of sources, including grants from governments, private organizations, public benefit funds, bonds, and carbon pricing mechanisms in the Northeast United States or Californias cap and trade program). Climate finance facilities use a variety of financing mechanisms to invest their funds, including loans, public-private partnerships, power purchasing agreements, and on-bill financing.
Climate finance facilitates the deployment of the large-scale investments in energy efficiency and renewable energy needed to reduce emissions, as well as the investments in climate adaptation and resilience needed to help communities prepare for the harmful impacts of climate change.
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Radiative Forcing And Annual Greenhouse Gas Index
Earth absorbs some of the radiant energy received from the sun, reflects some of it as light and reflects or radiates the rest back to space as heat. A planet’s surface temperature depends on this balance between incoming and outgoing energy. When Earth’s energy balance is shifted, its surface becomes warmer or cooler, leading to a variety of changes in global climate.
A number of natural and man-made mechanisms can affect the global energy balance and force changes in Earth’s climate. Greenhouse gases are one such mechanism. Greenhouse gases absorb and emit some of the outgoing energy radiated from Earth’s surface, causing that heat to be retained in the lower atmosphere. As explained above, some greenhouse gases remain in the atmosphere for decades or even centuries, and therefore can affect Earth’s energy balance over a long period. Radiative forcing quantifies the effect of factors that influence Earth’s energy balance including changes in the concentrations of greenhouse gases. Positive radiative forcing leads to warming by increasing the net incoming energy, whereas negative radiative forcing leads to cooling.
What Causes Global Warming
Certain gases, such as carbon dioxide and methane, trap the sun’s heat in Earths atmosphere. These greenhouse gases exist naturally in the atmosphere and help keep the Earths surface warm enough to sustain life. Without greenhouse gases, the average temperature on Earth would be zero degrees Fahrenheit, instead of today’s roughly 58.3 degrees Fahrenheit.
Human activities, notably the burning of fossil fuels to power vehicles, factories, and homes, release carbon dioxide and other greenhouse gases into the atmosphere. Other activities, including deforestation and raising livestock, also emit greenhouse gases.
Higher concentrations of these greenhouse gases in the atmosphere trap more heat on Earth, causing an anthropogenic rise in global temperatures. Climate scientists agree that human activity is the main driver behind the global warming we are experiencing.
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Acidification Of Water Bodies
Increase in the total amount of greenhouse gases in the air has turned most of the worlds water bodies acidic. The greenhouse gases mix with the rainwater and fall as acid rain. This leads to the acidification of water bodies.
Also, the rainwater carries the contaminants along with it and falls into the river, streams and lakes thereby causing their acidification.
Are Humans Causing Global Warming
Not everyone in the world agrees that humans are causing global warming by causing the release of greenhouse gases into the atmosphere. Some people believe that the current and ongoing rise in global temperatures is being caused by natural factors and cycles of climate change.
However, the vast majority of scientists do believe that humans are responsible for the increase in greenhouse gases and therefore global warming. This is because the majority of evidence in peer-reviewedjournals supports the theory that human activities are causing an increase in greenhouse gases and this is causing global warming.
However, climate science is complicated and it is difficult to predict and explain what will happen to global temperatures in the future, so scientists cannot be certain about global warming.
The media may sometimes present opinions and articles which are simplified, inaccurate, based on only some of the evidence or biased. It is important for new evidence to be shared with as many people as possible, so that other scientists can check the results and interpretation, and repeat the experiments for themselves.
When evaluating the quality of evidence on an issue like global warming, you should consider:
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How Do Greenhouse Gases Contribute To Global Warming
By now, you will know what the greenhouse effect is and how it contributes to causing the impacts of climate change. But do you know which greenhouse gases created by humans most contribute to global warming?
Not all have the same effect, nor do they come from the same sources, and in the same way each lasts for a different time in the atmosphere. To teach you a bit more about these gases, weve prepared a static infograph where you can check all this data about greenhouse gases simply, in a table.
We have excluded other variables such as the formation of water of anthropogenic origin and black carbon in snow for their lesser effect.
International Action Has Been Effective In Protecting The Ozone Layer
To halt the depletion of the ozone layer, countries around the world agreed to stop using ozone-depleting substances. This agreement was formalised in the Vienna Convention for the Protection of the Ozone Layer in 1985 and the Montreal Protocol on Substances that Deplete the Ozone Layer in 1987. In 2009, the Vienna Convention and the Montreal Protocol became the first treaties in the history of the United Nations to achieve universal ratification. Substances covered by the protocol are referred to as ‘controlled substances’. The main substances include chlorofluorocarbons , hydrochlorofluorocarbons , halons, carbon tetrachloride, methyl chloroform and methyl bromide. The damage to the ozone layer caused by each of these substances is expressed as their ozone depletion potential .
Figure 1: Consumption of controlled ozone-depleting substances
2007, governments made an additional commitment, agreeing to freeze production of HCFCs in developing countries by 2013 and to bring forward the final phase-out date of these chemicals to 2030.
These international agreements helped to greatly reduce the worldwide use of ozone-depleting substances in Europe and around the World . Scientific monitoring shows signs that the ozone layer is starting to recover. Full recovery is not expected to occur before the middle of the 21st century.
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What Is Greenhouse Effect By Brainly
Answer: The greenhouse effect is a natural process that warms the Earths surface. When the Suns energy reaches the Earths atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases. The absorbed energy warms the atmosphere and the surface of the Earth.
How Can I As An Individual Help Reduce Deforestation
The following practices can be incorporated to reduce the demand for forest products:
- Going paperless and using digital media wherever possible .
- Purchasing only recyclable products and recycling them once used.
- Purchasing only certified wood products and supporting the organizations that are fighting deforestation.
- Educating other individuals about deforestation and its negative impact on the environment.
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The Greenhouse Effectby Nadieshka Perez
Climate change is the changes that occur in the Earth’s climate system, resulting in new weather that lasts for a few decades or millions of years. A few human activities that cause climate change are the burning of fossil fuels , deforestation, and agriculture. Those three things emit greenhouse gases into the atmosphere. Though some of the things that release greenhouse gases occur naturally, the concentration of CO2 did not rise above 300 parts per million in the past. Today the concentration of CO2 in the atmosphere is about 400 parts per million.
The greenhouse effect is the trapping of the Sun’s warmth in the planet’s lower atmosphere. The combustion of fossil fuels, deforestation, fertilizer usage , and the transporting, extracting, processing, and distributing of fossil fuels all release greenhouse gases into the atmosphere. There have been many attempts to slow down greenhouse gas emissions by making laws.Examples include a law introduced by Senator Chuck Grassley, who added the renewable energy production tax credit to the energy policy. Another example would be June 2009, when the House passed the American Clean Energy and Security Act of 2009 by a vote of 219 to 212.
You could talk about it on social media, or make a video or blog about the subject and posting it since many people are online a lot.
It’s important to find a way to slow the greenhouse effect before temperatures get out of control.
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