The document discusses climate change as a significant crisis caused by factors such as human activities, greenhouse gas emissions, and changes in natural processes. It outlines the impacts of climate change, including severe weather events, rising sea levels, and health hazards. The conclusion emphasizes the importance of adaptation, policy advancements, and efforts to reduce carbon emissions and promote renewable energy.

1. Climate Change
and It’s
Consequences
Name : Hasna Hena Juthi
ID : 47230200636
Department of ELL
Northern University Bangladesh
Ali Afridi
Lecturer
Department of ELL
Northern University Bangladesh

2. Climate change is one of the biggest crises
facing humanity.
Climate change means the change in the
climatic activities & in atmospheric levels.
Climate Change

3. CAUSES OF CLIMATE CHANGE
• Changes in suns energy and slow changes in earth’s orbit.
• Changes in ocean circulation.
• Human activities – burning fossil fuels, deforestation, building
developments in cities.
• Greenhouse gases – excess carbon dioxide from burning
fuels and
clearing forest.
• Global warming

5. Noticing Period of
Climate Change
In 1896, a seminal paper by Swedish
scientist Svante Arrhenius first
predicted that changes in
atmospheric carbon dioxide levels
could substantially alter the surface
temperature through the greenhouse
effect.
In 1938, Guy Callendar connected
carbon dioxide increases in Earth's
atmosphere to global warming.

6. IMPACTS OF CLIMATE CHANGES
• Intense drought, storm
• Rising sea levels, melting glaciers
• Natural calamities – earthquake, cyclones, flood
• Hazardous diseases – cancer from radiations, incurable
allergies.
• Wildfires

7. • Acid rain
Acid rain is caused by emissions of sulfur dioxide and nitrogen
oxide, which react with the water molecules in the atmosphere to
produce acids.

12. Conclusion
• Helps people and nature adapt to a changing climate
• Advances policies to fight climate change- ( COP Paris by UNFCCC )
• Combats deforestation
• Introduce automobiles with new fuel system which reduces 90% pollution
• Engages with businesses to reduce carbon emissions
• Protecting forests
• Make others aware about the problem
• Invest in renewable energies

13. Thank
You