2. What is climate change?
■ Contemporary climate change includes both global warming and its impacts on
Earth's weather patterns. There have been previous periods of climate change,
but the current changes are distinctly more rapid and not due to natural causes
■ Instead, they are caused by the emission of greenhouse gases, mostly carbon
dioxide and methane
■ is a long-term change in the average weather patterns that have come to define
Earth's local, regional and global climates
3. Terminology
■ Before the 1980s, it was unclear whether warming by increased greenhouse
gases would dominate aerosol-induced cooling
■ Scientists then often used the term inadvertent climate modification to refer to
the human impact on the climate
■ The former refers only to increased surface warming, the latter describes the full
effect of greenhouse gases on the climate
4. What causes climate change?
■ The climate on Earth has been changing since it formed 4.5 billion years ago.
Until recently, natural factors have been the cause of these changes. Natural
influences on the climate include volcanic eruptions, changes in the orbit of the
Earth, and shifts in the Earth's crust (known as plate tectonics)
5. Greenhouse gases and the
greenhouse effect
■ Some gases in the Earth's atmosphere trap heat and stop it escaping into
space. We call these 'greenhouse gases'. These gases act as a warming
blanket around the Earth, known as the 'greenhouse effect‘
■ Greenhouse gases come from both human and natural sources. Gases like
carbon dioxide, methane, and nitrous oxide naturally occur in the atmosphere
■ Others, such as chlorofluorocarbons (CFCs), are only produced by human
activity
■ The greenhouse effect is critical to our survival. In fact, without greenhouse
gases, Earth would be about 30 degrees colder than it is today. Without
greenhouse gases and their warming effect, we wouldn't be able to survive
6.
7. Human causes of climate change
■ The burning of fossil fuels, such as coal, oil, and carbon dioxide
• Driving your car, heating your home,...
Industrial processes
• pollution from factories, product production, ...
Agriculture
• conversion of land
Conversion of land for forestry
Decomposition of wastes in landfills
8. What should we do?
■ Waste separation
■ Buy eco-friendly items instead of normal
■ Buy less clothes from fast fashion brands and buy clothes from second-hand
■ Reduce water waste
■ Plant more trees
9. What is fast fashion?
■ Fast fashion is a term used to describe the clothing industry business model of
replicating recent catwalk trends and high-fashion designs, mass-producing
them at low cost, and bringing them to retail stores quickly while demand is
highest
■ Besides the sheer bulk of waste in landfills, fast fashion has an impact on the
environment through carbon emissions. The fashion industry is responsible for
10% of global CO2 emissions each year, according to the Ellen MacArthur
Foundation. 3
That's more than all international flights and maritime shipping
combined
