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Factors of climate change and what we’ve done as a population to prevent/…
Factors of climate change and what we’ve done as a population to prevent/ contribute to it.
Milankovitch Cycles. (For more information click Here:
https://climate.nasa.gov/news/2948/milankovitch-orbital-cycles-and-their-role-in-earths-climate/
Eccentricity
Eccentricity is one of three Milankovitch cycles. It is what makes the winters 4.5 days shorter than the summers. When the earth is closer to the sun it has a warmer climate and vice versa in the winter. If the Eccentricity increases it would make the aphelion continents much colder with a longer lasting winter, and those at the perihelion shorter and warmer.
Axial Tilt
Axial tilt is the measure of the angle that the earth is on in our orbit. If the earth was very tilted our seasons would get more and more extreme. Over 41,000 years the earth's tilt goes from 24.5% to 22.1%. Currently, the earth's tilt is at 23.4% and it is decreasing.
Precession
Precession is the slow, conical motion of the earth's axis of rotation, caused by the gravitational attraction of the sun and moon. Precession controls the speed at which the Earth approaches the sun explained by eccentricity. If the earth approaches the sun too quickly the seasons will be shorter than the other ones.
Human prevention to Global Warming. Here are some ways to prevent your daily emissions.
https://www.northwestern.edu/fm/fm-staff/10-ways-to-stop-global-warming.html#:~:text=Walk%2C%20bike%2C%20carpool%20or%20take,mile%20you%20don't%20drive!&text=You%20can%20save%202%2C400%20pounds,half%20of%20your%20household%20waste.&text=Keeping%20your%20tires%20inflated%20properly,by%20more%20than%203%20percent
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Solar power and energy efficient vehicles.
In the car industry, multiple companies are working on fuel-efficient and electric vehicles. Currently, 5.2% of Canada's population has electric cars. But, by 2030 cities like Ottawa have declared that all vehicle sales have to be electric.
Solar and wind powered homes/buildings
In Canada, about 43,000 homes have solar panels. Secondly, there are about 317 windmills across Canada that can be used for local towns within its proximity. The way windmills work is if there's a small gust of wind the blades start to rotate and produce kinetic energy and then into electric.
Human contribution to climate change
Greenhouse Gasses
Greenhouse Gases such as CO2 and Methane can trap the energy from the sun and hold it within the atmosphere. This is called the Greenhouse effect and has an impact on Global warming.
Farming
Farming in Canada produces 8% of our emissions. The gasses produced are mostly from red meat animals such as cows and pigs that produce methane (CH4).
Factory Work
A total of 24% of the world's carbon emissions come from factories that produce carbon dioxide and man-made carbons called hydrocarbons that are way stronger than natural ones.
Deforestation
Every year 10 million hectares of trees are cut down for human use. That's about the size of Iceland! By killing forests each year carbons will be extracted from the atmosphere and the ratio will be unstable
Earth's own changes to its temperature
El niño/ La niña
An El Niño condition occurs when surface water in the Pacific becomes warmer than normal and east winds blow weaker than normal. El Niño conditions lead to wetter, snowier conditions and cooler maximum temperatures during the winter. El niño cools down the earth.
La Niña is the opposite of el niño and its conditions lead to drier and warmer temperatures overall.
Volcanic erruptions
When Volcanoes erupt they produce multiple types of gasses such as CO2 and types of ash. Some parts of the ash fall to the surface but the rest of it rises towards the Stratosphere where the ozone layer is and then eventually gets absorbed into it making a stronger force field around our surface. (From the sun)
