Global warming is caused by the rise in greenhouse gases like carbon dioxide from human activities like burning fossil fuels. The average temperature of the Earth has increased by 0.8°C since the late 19th century, with two-thirds of the increase occurring since 1980. While natural factors can influence climate, the current warming pattern cannot be explained without including the effect of human-emitted greenhouse gases. If warming continues unchecked, impacts are expected to intensify and include rising sea levels, stronger storms, species disruption, and more floods and droughts. Reducing emissions through actions like clean energy and more efficient use of resources can help mitigate the effects of global warming.

1. Global Warming
By Siddharth Koyal

2. What is Global Warming??
• Global warming is the rise in the average
temperature of Earth's atmosphere and
oceans since the late 19th century and its
projected continuation. Since the early 20th
century, Earth's mean surface temperature
has increased by about 0.8 °C (1.4 °F), with
about two-thirds of the increase occurring
since 1980.

3. Comic Pictures

4. What is the cause of Global Warming
• Scientists have spent decades figuring out
what is causing global warming. They've
looked at the natural cycles and events that
are known to influence climate. But the
amount and pattern of warming that's been
measured can't be explained by these factors
alone. The only way to explain the pattern is
to include the effect of greenhouse gases
(GHGs) emitted by humans.

5. List of Greenhouse Gasses
• Carbon dioxide
• Carbon Monoxide
• Methane
• Nitrous oxide
• Tetrafluoromethane
• Hexafluoroethane
• Sulfur hexafluoride

6. The Greenhouse effect…..

7. The 2 different Types of Greenhouse
Effects
• There are two common meanings of the term
"greenhouse effect". There is a "natural"
greenhouse effect that keeps the Earth's
climate warm and habitable. There is also the
"man-made" greenhouse effect, which is the
enhancement of Earth's natural greenhouse
effect by the addition of greenhouse gases
from the burning of fossil fuels (mainly
petroleum, coal, and natural gas).

8. Who tells us about all the causes?
• To bring all this information together, the United
Nations formed a group of scientists called
the Intergovernmental Panel on Climate Change,
or IPCC. The IPCC meets every few years to
review the latest scientific findings and write a
report summarizing all that is known about global
warming. Each report represents a consensus, or
agreement, among hundreds of leading scientists.
•

9. The Impact of Global Warming.
• Ice is melting worldwide, especially at the Earth’s poles. This
includes mountain glaciers, ice sheets covering West Antarctica and
Greenland, and Arctic sea ice.
• Researcher Bill Fraser has tracked the decline of the Adélie
penguins on Antarctica, where their numbers have fallen from
32,000 breeding pairs to 11,000 in 30 years.
• Sea level rise became faster over the last century.
• Some butterflies, foxes, and alpine plants have moved farther north
or to higher, cooler areas.
• Precipitation (rain and snowfall) has increased across the globe, on
average.
• Spruce bark beetles have boomed in Alaska thanks to 20 years of
warm summers. The insects have chewed up 4 million acres of
spruce trees.

10. IF warming continues…..
• Sea levels are expected to rise between 7 and 23 inches (18 and 59
centimeters) by the end of the century, and continued melting at
the poles could add between 4 and 8 inches (10 to 20 centimeters).
• Hurricanes and other storms are likely to become stronger.
• Species that depend on one another may become out of sync. For
example, plants could bloom earlier than their pollinating insects
become active.
• Floods and droughts will become more common. Rainfall in
Ethiopia, where droughts are already common, could decline by 10
percent over the next 50 years.
• Less fresh water will be available. If the Quelccaya ice cap in Peru
continues to melt at its current rate, it will be gone by 2100, leaving
thousands of people who rely on it for drinking water and electricity
without a source of either.
• Some diseases will spread, such as malaria carried by mosquitoes.

11. Pictures of The impact

12. What can we Do?
Clean or replace filters on your furnace and air
conditioner
Cover your pots while cooking
Be sure you’re recycling at home
Reduce waste
Plant a tree

13. PLEASE STOP CONTRIBUTING TO
GLOBAL WARMING!!

14. THANK YOU!!