What are causes of Global Warming? What makes fossil fuels a big cause of global warming is the burning of fossil fuels. When people burn fossil fuels it sends out large amounts of Carbon Dioxide into the air. Carbon dioxide is bad for the Ozone layer, it causes sun rays to heat up the earth even more. Another leading cause of global warming is those devices that get us around town, vehicles.
Vehicles are a big leading cause of global warming. Greenhouse gases are the main cause of global warming.
Human beings have raised carbon dioxide in the atmosphere with their activities, such as deforestation, and burning fossil fuels. The other major causes of global warming is population growth, pollution, and industrialization. These changes are resulting rise in sea level, melting glaciers, damage of the ozone layer, unseasonable rains, and also increasing many other environmental problems.
Impacts of global warming can be seen in countries like Australia and New Zealand. This is due to carbon dioxide causing the Earth 's average air temperature to increase and higher temperatures cause particles in the Earth 's atmosphere to move more. This can cause weather like slight breezes, hurricanes, and tornados cotf. In conclusion, the amount of carbon humans deposit into the environment causes weather pattern changes.
The more humans ruin the environment, the more problems the atmosphere will…. There are several changes that are being predicted. There is high scientific evidence that global temperatures will continue to rise for decades into the future because of green house gases being produced by human activities. Scientists have concluded from research that a temperature rise of 2.
The future is predicted to have ocean acidification, over the past century the ocean water acidity has increased around 30 percent due to humans admitting more carbon dioxide into the atmosphere. Carbon dioxide absorbed by the upper layer of the ocean is increasing by two billion tons per year. Also how temperature changes will affect the microbial community in soils, and the soil itself. Please consider making a contribution to Vox today to help us keep our work free for all. Cookie banner We use cookies and other tracking technologies to improve your browsing experience on our site, show personalized content and targeted ads, analyze site traffic, and understand where our audiences come from.
By choosing I Accept , you consent to our use of cookies and other tracking technologies. How humans disrupted a cycle essential to all life. Share this story Share this on Facebook Share this on Twitter Share All sharing options Share All sharing options for: How humans disrupted a cycle essential to all life. Reddit Pocket Flipboard Email. In a piece a few months ago , he described the carbon cycle — but in a way that helped frame virtually every other piece I read on climate change: Using sunlight, plants and microorganisms take in carbon dioxide and emit oxygen.
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For this reason, this is the change that we will most often focus on throughout this section. The excess CO 2 in the atmosphere is responsible for the increased CO 2 dissolving into the ocean, which we will discuss later in this section. This is also, in part, responsible for the increased terrestrial photosynthesis that can be observed, as additional CO 2 is available to plants for photosynthesis. However, intensive agricultural and forestry practices also contribute to the change in this flux.
Throughout most of our recent human history, people have been physically altering the landscape around them in order to have more control over their surroundings and increase their odds of survival. One way that people have done this is through agriculture.
In order for most forms of agriculture to be successful, native vegetation is eliminated or minimized. Resources from this native vegetation, such as wood, may be used for combustion to provide heat, sanitation, or fuel for cooking.
Combustion may also be used as an efficient way to clear the land and make way for crops or grazing lands for livestock. Often, settlements are formed around these newly fashioned agricultural fields, and the land is used in a similar fashion for many years in the future. You should be able to identify from the above paragraph that the flux of combustion will release CO 2 previously held in vegetation into the atmosphere.
In addition, remember that the land that used to house native vegetation is now home to agricultural lands. In most controlled agricultural environments, there is less total vegetative biomass than there would be under natural conditions. This decreased biomass leads to lower total photosynthesis rates, thereby decreasing the amount of CO 2 that is removed from the atmosphere and turned into plant biomass.
Also, open soil on the fields between crops, during the winter months, or as a result of overgrazing allows for the air to penetrate deep into the soil structure. This provides the environment necessary for enhanced aerobic respiration by soil microorganisms. This decreases soil carbon, which can lead to erosion and soil degradation, and also releases additional CO 2 to the atmosphere. As you learned in Chapter 5, biomass is an important form of energy to human civilization.
Prior to the Industrial Revolution, this was essentially the only form of fuel to which most people on Earth had access. In many less-industrialized countries , combustion of biomass such as wood or animal dung is still the primary energy source that many citizens, particularly in rural areas, depend on for domestic use heating, sanitation, and cooking as it is inexpensive, relatively efficient, and readily available. While the burning of biomass for domestic use contributes to some of these fires, it is the so-called slash-and-burn agriculture that makes up a larger contribution.
If you need a refresher, use the CIA World Factbook website to view current global population growth values by country: www. While biomass burning still has a significant impact on the global carbon cycle, human impacts on fluxes such as fossil fuel extraction and combustion continue to grow. For a review of the impacts of non-renewable energy sources such as fossil fuels, see Chapter 4.
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