-
Asked by anon-370699 on 27 Nov 2023. This question was also asked by anon-376396.
Question: why has global warming increased over the years
- Keywords:
-
Hazel Jeffery answered on 27 Nov 2023:
The scientific evidence is clear: the main cause of climate change is burning fossil fuels such as oil, gas, and coal. When burnt, fossil fuels release carbon dioxide into the air, causing the planet to heat up. Greenhouse gases including carbon dioxide, trap the heat in the atmosphere and cause the Earth to heat up. Check out the Met Office web site for more information: https://www.metoffice.gov.uk/weather/climate
-
Ian McKinley answered on 27 Nov 2023:
Impacts of global warming have been more noticeable because concentrations of greenhouse gasses are continually increasing. As the Earth gets warmer, weather gets more extreme giving droughts, floods, wildfires etc. It is thus critically important to stop releasing these gases as soon as possible, before things get any worse.
-
Paula McMahon answered on 27 Nov 2023:
Because we keep putting greenhouse gases into the atmosphere – because we burn fossil fuels to credit energy – and we use too much
-
Ollie Thomas answered on 28 Nov 2023:
Global warming is a complicated phenomenon that occurs due to many factors. The major contributor in recent years has been the emission of greenhouse gases which let heat from the sun reach the earth but then don’t let it escape (just like the glass from a greenhouse). Greenhouse gases are things like CO2, and methane. These come from burning fuels, but also other things like farming (cows burp out a lot of methane). Ever since the industrial revolution the number of people in the world has been increasing rapidly and the amount of resources used per person has increased as factories and things like that became more and more common. This has lead to an increasing amount of greenhouse gases to be released and thus an increase in global warming.
-
Jonathan Allen answered on 28 Nov 2023:
Good answers already, but I think the other key thing to remember is that people in the past have not done much to tackle climate change – partly because in past centuries people were not as aware of it as we are now – so that has allowed it to get worse and worse. Now we understand it well we need to take swift action to correct it.
-
Andrew Lyon answered on 29 Nov 2023:
It’s because the atmosphere has changed due to an increase in ‘greenhouse gases’ which include carbon dioxide and methane. They are released when oil, coal and gas (fossil fuels) are burned which is an activity that has increased since the industrial revolution.
The population has also increased considerably since then along with how many resources each person uses and how much waste they produce. We can measure the amount of greenhouse gases that we produce using something called a ‘carbon footprint’. Studies show that humanities carbon footprint is 11 times bigger than it was 60 years ago and it is really important that we reduce this to reduce the impact of climate change.
-
Octavia Brayley answered on 29 Nov 2023:
Great question! Modern-day climate change has been caused primarily by humans burning fossil fuels. This started during the Industrial Revolution from 1760-1840. Here are some of the top contributors and some more information about each one:
1. Generating electricity and heat by burning fossil fuels such as coal, oil and natural gas causes a large chunk of global emissions. Most electricity is still produced from fossil fuels; only about a quarter comes from wind, solar and other renewable sources.
2. Manufacturing and industry produce emissions, mostly from burning fossil fuels to produce energy for making things like cement, iron, steel, electronics, plastics, clothes and other goods. Mining and other industrial processes also release gases.
3. Cutting down forests to create farms or pastures, or for other reasons, causes emissions, since trees, when they are cut, release the carbon they have been storing. Since forests absorb carbon dioxide, destroying them also limits nature’s ability to keep emissions out of the atmosphere.
4. Most cars, lorries, ships and planes run on fossil fuels. That makes transportation a major contributor of greenhouse gases, especially carbon-dioxide emissions. Road vehicles account for the largest part, but emissions from ships and planes continue to grow.
5. Producing food requires energy to run farm equipment or fishing boats, usually with fossil fuels. Growing crops can also cause emissions, like when using fertilisers and manure. Cattle produce methane, a powerful greenhouse gas. And emissions also come from packaging and distributing food.
6. Globally, residential and commercial buildings consume over half of all electricity. As they continue to draw on coal, oil and natural gas for heating and cooling, they emit significant quantities of greenhouse gas emissions.
7. Your home and use of power, how you move around, what you eat and how much you throw away all contribute to greenhouse gas emissions. So does the consumption of goods such as clothing, electronics and plastics.
And here’s a video to watch:
Comments