HOPE E-COURSE FORMAL CAREGIVERS -GR
Goal: The student
gains a comprehensive understanding of the primary causes and effects of
climate change
Credits to ClimateAdaptationPlatform.com
In the former week you have learned about climate change. This week we will address its causes and effects.
Important causes of climate change include:
- Generating power: Generating electricity and heat by burning fossil fuels causes a large part of global emissions. Globally, just a bit more than a quarter of electricity comes from wind, solar and other renewable sources.
- Manufacturing goods: Manufacturing and industry produce emissions, mostly from burning fossil fuels to produce energy for making cement, iron, steel, electronics, plastics, clothes and other goods. The manufacturing industry is one of the largest contributors to greenhouse gas emissions worldwide.
- Cutting down forests: Cutting down forests, for instance to create farms or pastures, causes emissions, since trees, when they are cut, release the carbon they have been storing. Further, cutting trees limits nature’s ability to absorb carbon dioxide and keeping emissions out of the atmosphere.
- Using transportation: As most cars, trucks, ships and planes run on fossil fuels, transportation is a major contributor of greenhouse gases.
- Producing food: Producing food causes emissions of greenhouse gases in various ways, including through deforestation and clearing of land for agriculture and grazing, digestion by cows and sheep, the production and use of fertilizers and manure and the use of energy to run farm equipment or fishing boats.
- Powering buildings: Globally, residential and commercial buildings consume over half of all electricity. Growing energy demand for heating and cooling, with rising air-conditioner ownership, as well as increased electricity consumption for lighting, appliances and connected devices, have contributed to a rise in energy-related carbon-dioxide emissions from buildings in recent years.
- Consuming too much: A large part of global greenhouse gas emissions is caused by private households. Resident’s homes and their use of power, how much they move around, what they eat, how much they consume (clothing, electronics, plastics, etc.) and how much they throw away all contribute to greenhouse gas emissions.
Effects of climate change
The main consequences of climate change include:
- Hotter temperatures: As a result of the rise in greenhouse gas concentrations, the global surface temperature rises also. Higher temperatures increase heat-related illnesses and make working outdoors more difficult. Further, wildfires start more easily and spread more rapidly.
- More severe storms: As temperatures rise, more moisture evaporates, which exacerbates extreme rainfall and flooding, causing more destructive storms. The frequency and extent of tropical storms is also affected by the warming ocean. Such storms often destroy homes and communities, causing deaths and huge economic losses.
- Increased drought: Climate change exacerbates water shortages in already water-stressed regions and is leading to an increased risk of agricultural droughts affecting crops.
- A warming, rising ocean: The ocean soaks up most of the heat from global warming. As the ocean warms, its volume increases since water expands as it gets warmer. Melting ice sheets also cause sea levels to rise, threatening coastal and island communities.
- More health risks: Climate change is the single biggest health threat facing humanity. Climate impacts are already harming health, through air pollution, disease, extreme weather events, etc. Changing weather patterns are expanding diseases, and extreme weather events increase deaths.
This week’s work:
Please look at the suggested Youtube-movie to gain a more thorough insight in the causes and effects of climate change.
Then check and read the summary for policymakers in this website: https://www.ipcc.ch/report/ar6/syr/
Knowledge check:
1. Write down the – in your opinion – most important:
- Current trends (3)
- Expected future changes (3) and
- Near and long term responses (3).
2. After having read the following content, from this website: https://www.un.org/en/actnow/ten-actions
write down at least 3 actions you can take yourself to reduce climate change.
Actions for a healthy planet
The Sustainable Development Goals spell out how we can protect our environment and slow climate change, from forests to oceans to everywhere in between. Think about your electricity use and your travel. Check your dinner table. Reuse whatever you can. The possibilities for action are many – and add up fast.
Greenhouse gas emissions per person vary greatly among countries. In the United States of America, per capita emissions are more than double the world average of 6.5 tons of CO2 equivalent, while in India they are less than half the world average. Globally, the 10 per cent of the population with the highest income account for nearly half of all emissions. Here are some actions to reduce your impact on the environment. To learn more about climate action, science and solutions, click here.
Save energy at home
Much of our electricity and heat are powered by coal, oil and gas. Use less energy by reducing your heating and cooling use, switching to LED light bulbs and energy-efficient electric appliances, washing your laundry with cold water, or hanging things to dry instead of using a dryer. Improving your home’s energy efficiency, through better insulation for instance, or replacing your oil or gas furnace with an electric heat pump can reduce your carbon footprint by up to 900 kilograms of CO2e per year. Get more energy tips for your home here.
Change your home's source of energy
Ask your utility company if your home energy comes from oil, coal or gas. If possible, see if you can switch to renewable sources such as wind or solar. Or install solar panels on your roof to generate energy for your home. Switching your home from oil, gas or coal-powered energy to renewable sources of energy, such as wind or solar, can reduce your carbon footprint by up to 1.5 tons of CO2e per year. Learn more about why switching to renewable energy is key to tackling the climate crisis.
Walk, bike or take public transport
The world’s roadways are clogged with vehicles, most of them burning diesel or gasoline. Walking or riding a bike instead of driving will reduce greenhouse gas emissions -- and help your health and fitness. For longer distances, consider taking a train or bus. And carpool whenever possible. Living car-free can reduce your carbon footprint by up to 2 tons of CO2e per year compared to a lifestyle using a car. Learn more about how to green your travel.
Switch to an electric vehicle
If you plan to buy a car, consider going electric, with more and cheaper models coming on the market. In many countries, electric cars help reduce air pollution and cause significantly fewer greenhouse gas emissions than gas or diesel-powered vehicles. But many electric cars still run on electricity produced from fossil fuels, and the batteries and engines require rare minerals which often come with high environmental and social costs. Switching from a gasoline or diesel-powered car to an electric vehicle can reduce your carbon footprint by up to 2 tons of CO2e per year. A hybrid vehicle can save you up to 700 kilograms of CO2e per year.
Consider your travel
Airplanes burn large amounts of fossil fuels, producing significant greenhouse gas emissions. That makes taking fewer flights one of the fastest ways to reduce your environmental impact. When you can, meet virtually, take a train, or skip that long-distance trip altogether. Taking one less long-haul return flight can reduce your carbon footprint by up to almost 2 tons of CO2e. Learn more about how to green your travel.
Reduce, reuse, repair and recycle
Electronics, clothes, plastics and other items we buy cause carbon emissions at each point in production, from the extraction of raw materials to manufacturing and transporting goods to market. To protect the climate, buy fewer things, shop second-hand, and repair what you can. Plastics alone generated 1.8 billion metric tonnes of greenhouse gas emissions in 2019 – 3.4 per cent of the global total. Less than 10 per cent is recycled, and once plastic is discarded, it can linger for hundreds of years. Buying fewer new clothes – and other consumer goods – can also reduce your carbon footprint. Every kilogram of textiles produced generates about 17 kilograms of CO2e.
Eat more vegetables
Eating more vegetables, fruits, whole grains, legumes, nuts, and seeds, and less meat and dairy, can significantly lower your environmental impact. Producing plant-based foods generally results in fewer greenhouse gas emissions and requires less energy, land, and water. Shifting from a mixed to a vegetarian diet can reduce your carbon footprint by up to 500 kilograms of CO2e per year (or up to 900 kilograms for a vegan diet). Learn more about the connections between food and climate change.
Throw away less food
When you throw food away, you're also wasting the resources and energy that were used to grow, produce, package, and transport it. And when food rots in a landfill, it produces methane, a powerful greenhouse gas. So purchase only what you need, use what you buy and compost any leftovers. Cutting your food waste can reduce your carbon footprint by up to 300 kilograms of CO2e per year.
Plant native species
If you have a garden or even just a plant or two outside your home, check for native species. Use a plant identification app to help. And then think about replacing non-natives, especially any considered invasive. Plants, animals and insects depend on each other. Most insects will not eat non-native plants, which means birds and other species lose a food source. Biodiversity suffers. Even a single tree or shrub can offer a refuge – just remember to skip insecticides and other chemicals.
Clean up your environment
Humans, animals and plants all suffer from land and water contaminated by improperly discarded garbage. Use what you need, and when you have to throw something out, dispose of it properly. Educate others to do the same, and participate in local clean-ups of parks, rivers, beaches and beyond. Every year, people throw out 2 billion tons of trash. About a third causes environment harms, from choking water supplies to poisoning soil.
Make your money count
Everything we spend money on affects the planet. You have the power to choose which goods and services you support. To reduce your environmental impact, choose products from companies who use resources responsibly and are committed to cutting their gas emissions and waste. If you have money that is being invested for you, through a pension fund for instance, it may be supporting fossil fuels or deforestation. Making sure your savings are invested in environmentally sustainable businesses can greatly reduce your carbon footprint.
Speak up
Speak up and get others to join in taking action. It's one of the quickest and most effective ways to make a difference. Talk to your neighbors, colleagues, friends, and family. Let business owners know you support bold changes – from plastics-free products and packaging to zero-emissions vehicles. Appeal to local and world leaders to act now. Climate action is a task for all of us. And it concerns all of us. No one can do it all alone – but we can do it together. Explore ideas here.
For more detailed information on low-carbon lifestyles, see the UN Environment Programme’s Emissions Gap Report 2020.
For more on how to reduce carbon-intensive consumption and scale up low-carbon alternatives, see this UNEP policy brief.
Illustrations: Niccolo Canova