Climate science: The basics Outreach Event on the IPCC Role, Activities and Findings Event for students 30 November 2016 Kingston, Jamaica INÉS CAMILLONI IPCC AR5 Lead Author Dept. of Atmospheric and Oceanic Sciences/CIMA University of Buenos Aires/CONICET, Argentina
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Climate science: The basics
Outreach Event on the IPCC Role, Activities and FindingsEvent for students
30 November 2016Kingston, Jamaica
INÉS CAMILLONIIPCC AR5 Lead AuthorDept. of Atmospheric and Oceanic Sciences/CIMAUniversity of Buenos Aires/CONICET, Argentina
WhyEarth is a good place to live?
Gas, liquid & solid
Water
Moderate temperature
Sun
Energy
Why Earth?
Not Venus?Nor Mars?
Earth’s atmosphere
Water vaporCarbon dioxideMethaneNitrous oxide…
Greenhouse effectNatural process that warms the Earth’s surface and
the lower atmosphere.
(IP
CC
20
13
, Fig
. 6.1
1)
CO2: +40%
CH4: +150%
N20: +20%
year 0 = 1750
The atmospheric concentrations of carbon dioxide, methane and nitrous oxide have all increased since 1750
due to human activity
Evidences of climate change
Warming of the climate system is unequivocal
Independent sources
Many lines of evidence
Future climate
0.3-1.7C
2.6-4.8C
Global temperature change for the end of the 21st century is likely to exceed 1.5°C relative to 1850 for all scenarios
(IP
CC
20
13
, F
ig.
SP
M.7
a)
(IP
CC
20
13
, Fig
. SP
M.9
)
Global mean sea level will continue to rise during the 21st century
0.26 m
0.98 m
Limiting climate change will require substantial and sustained reductions of greenhouse gas emissions.
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