Climate change mitigation and monitoring system

1. Climate change during 20th
century
Historical perspectives of climate change
Monitoring and mitigation
 CAT. NO-BASS:1208
 COURSE NAME:CLIMATE SCIENCE(1+1)
1

2. SLIDE NO:2 GROUP MEMBERS
ASWIN SANTHOSH
AMRITHA PRIYA
DEEPAK YADAV
SOORAJ DEV K
RINSHA SINIYA U
2

3. What is weather…. ?
weather is the mix of events that happen each day in
our atmosphere. Weather is different in different
parts of the world and changes over minutes, hours,
days, and weeks.
What is climate…. ?
Climate is the average weather in a place over many
years. While the weather can change in just a few
hours, climate takes hundreds, thousands, even millions
of years to change.
3

4. 4
CLIMATE CHANGE DURING 20th century
What Is Climate Change ?
Climate change is a change in the usual weather found in a
place. This could be a change in how much rain a place usually
gets in a year. Or it could be a change in a place's usual
temperature for a month or season.

5. 5
During the 20th century a global average surface
temperature increase of about 0.6 degree C per
year has taken place.
Most of the warming occurred during the 20th
century in two periods 1910 to 1945 and
1976 to 2000

6. Mid-20th Century Cooling
There was a very slight cooling in the
average global surface temperature from
about 1940 to 1975. Although the global
temperature only decreased by
approximately 0.1°C, this period represents a
divergence from the warming periods of 1910
to 1940 and 1975 to Present
6

7. 7

8.  TEMPERATURE HAVE RISEN DURING THE PAST 4 DECADES IN
THE LOWEST 8 KM OF THE ATMOSPHERE
 LOWEST 8 KM OF THE ATMOSPHERE AND THE SURFACE ARE
INFLUENCED BY FACTORS SUCH AS:
 STRATOSPHERIC OZONE DEPLETION
 ATMOSPHERIC AEROSOLS
 EL NINO PHENOMENON
 From 1900 to 1940 atmospheric co2 levels increased from
approximately 295 to 310 ppm by volume
8

9. SNOW COVER AND ICE EXTENT HAVE
DECREASED
SATELLITE DATA SHOW THAT THERE HAS
BEEN A DECREASE OF ABOUT 10% IN THE
EXTENT OF SNOW COVER SINCE THE LATE
1960s
9

10. Global average sea level has risen and ocean
content has increased
Global average sea level rose between 0.1 to 0.2
m(10 to 20 cm) during the 20th century
10

11. Precipitation has increased by 0.5 to 1% per decade
in the 20th century over most mid and high latitudes
of the northern hemisphere continent
Increase in heavy precipitation events can
arise from a number of causes . example :
changes in atmospheric moisture ,Thunder
storm activity
11

12. Ozone depletion during 20th century
Ozone depletion is the gradual thinning of earths
ozone layer in the upper atmosphere caused by the
release of chemical compounds containing gaseous
chlorine or bromine from industry and other human
activities.
Thinning is most pronounced in the
polar regions , especially over Antartica
12

13. 13

14. 14

15. Mitigation
Mitigation is the technological change and
substitution that reduce resource inputs and
emissions per unit of output
Implementing policies to reduce GHG emission and
carbon enhance sinks
15

16. Methods of Mitigating Climate Change
Adopting more sustainable natural resourse
management,and harvesting or extraction
technologies and practices.
 Implementing more nature conservation activities
to preserve naturally occurring carbon sinks
16

17. Putting into place various forest conservation
practices to reduce emission from deforestation and
from forest degradation.
Promoting the sustainable management of forest
17

18. Some of the Efforts Adopted To Mitigate
Climate Change
Power : Ensuring access to low and zero carbon
energy solutions,such as solar, wind, small hydro
biopower and geothermal energy
Cities and transport : Investing in sustainable
transport methods
18

19. Agriculture : Promoting practices that reduce and
degradation issues and enhance soil quality, while
reducing GHG emissions from the sector
Manufacturing : Improving energy efficiency and
reducing emissions.
Waste : Reducing GHG emissions from landfills
coupled with reduction in the release of chemical
pollutants in contaminated air and water
19

20. Climate change monitoring system
A climate change monitoring system integrates satellite
observations, ground-based data and forecast models
to monitor and forecast changes in the weather and
climate.
20

21.  climate monitoring is clearly shown in the structure of the
World Meteorological Organization’s (WMO) World Weather
Watch (WWW), which comprises three integrated core
system components as follows:
 The Global Observing System (GOS)
 The Global Data Processing System (GDPS)
 The Global Telecommunication System (GTS)
21

22. 22

23. 23