The greenhouse effect is a process that occurs when energy from a planet's host star goes through its atmosphere and warms the planet's surface, but the atmosphere prevents the heat from returning directly to space, resulting in a warmer planet
2. What is Greenhouse?
❖ Greenhouses are special buildings
usually made from glass & steel. They
are used to grow plants which need
humidity, tropical temperature &
constant growing condition.
❖ In a glass greenhouse heat builds up &
gets trapped due to presence of CO2. It
offers plants a warm and humid
environment, even if the outside
weather is dry , windy or cold.
Img Source – Royal Victorian Glass House
3. What is the Greenhouse Effect?
The greenhouse effect is a
natural process that warms
the Earth's surface. When the
Sun's energy reaches the
Earth's atmosphere, some of
it is reflected back to space
and the rest is absorbed and
re-radiated by greenhouse
gases. ... The absorbed energy
warms the atmosphere and
the surface of the Earth.
Source – Green House Effect -Wikipedia
4. Causes of Greenhouse
Effect
❖ Burning of Fossil fuel
❖ Deforestation
❖ Farming
❖ Industrial waste and
landfills
Source – Energy Education
5. Effects of Greenhouse
Effect
❖ Global warming
❖ Depletion of ozone layer
❖ Smog and air pollution
❖ Acidification of water
bodies
Img Source- https://www.google.com/url?sa=i&url=http%3A%2F%2Fblog.
6. Heat Budget
The balance of incoming and outgoing
heat on Earth is referred to as its heat
budget. As with any budget, to
maintain constant conditions the
budget must be balanced so that the
incoming heat equals the outgoing
heat.
Source – wikimedia.org
7. The Greenhouse
Effect on Earth’s
Heat Budget
The greenhouse effect plays a significant role in
Earth's energy budget. It does not allows the sun’s
rays of longer wavelength to escape the earth ,thus
increasing the temp. As these greenhouse gasses
are increasing due to various activities, the
temperature of earth is also increasing .
Resulting in CLIMATE CHANGE .
https://www.worldatlas.com/articles/what-is-the-earth-s-energy-budget.html
Source -
8. How Climate Change is
Affecting US and the
Environment ?
Destroy food crop → rice, wheat and corn
Affect animals need to migrate
Encourage growth of weed and pests → may
lead to diseases like dengue fever, cholera
which are deadly.
Global warming will lead to an increase in the
evaporation of water → more water vapour.
With more water vapour, more rain fall is expected.
But it is not evenly distributed:
Dry areas → severe drought condition,
water shortage and heat waves occurs
Wet areas → floods and avalanches (landslides)
Source -
9. Who is Responsible ?
• Affluent and rich countries are
responsible for changes of climate.
• Global energy consumption and
CO, emissions have increased 3
times between 1950 - 85.In 1990
out of 21 billion tons of global
emissions, 14billion tons are
emitted by rich countries.
• US alone emitted 5 billion tons of
carbon. India emits 159 million
tons.
10. Future of Climate
Change if
Uncontrolled
• Increase Earth's average temperature
• Influence the patterns and amounts
of precipitation
• Retreating or vanishing glacial ice
• Replacement of polar tundra by conifer forests
• Ocean acidification (related to CO2 emissions
rather than warming)
• Decreases in ocean oxygen levels
• Increase the frequency, intensity, and/or
duration of extreme events
• Shift ecosystem characteristics
• Increase threats to human health
Source – US EPA & health.hawaii.gov
11. Controls And
Precautions
1. Low carbon power
generation.
2. Transport system through
bio-fuels , batteries and
hydrogen powered devices.
3. Sustainable forest
management .
4. Afforestation (Mangrove; CS
species) .
5. Carbon sequestering
biological system .
Source - https://www.wwf.org.uk/reports/UK-contribution-climate-change
12. Conclusion
THANK YOU
In conclusion, we need to take part
and try to stop global warming and
other effects on climate change. If
the earth’s temperatures continue to
rise in the future, living things on
earth would become extinct due to
the high temperatures. If humans
contribute to control global warming,
this world would be cooler and the
high temperatures we currently have
would decrease. If everybody as one
take stand and try to end most of the
climate changes that are occurring,
this world would be a safer place to
live on.
