Unit 2 Global climate

Unit 2 Global climate-vulnerability and resilience

Atmospheric system
·Atmospheric structure
·Global energy budget and balance
Changes to the global energy budget
·Natural
·Human induced
Impacts of changes
Respond to changes
insolation reflection absorption radiation
atmospher clouds surface
what are we doing that influence these? (activity, describe the change, explin the impact)
Net Radiation balance
incoming short-wave radiation
energy from the sun(source)
heats the earth directly
outgoing long-wave radiation
energy emitted by the earth(cold body)
radiates into spaces
trapped by atmosphers and returned to earth's surface
name the layers of our earth's atmopher
what is isolation
what is cadiation what is longwave/shortwave mradiation
what is the greenhouse effect?what is the enhence greenhouse effect?
factors affecting energy budget: insolation
natural:
-solar cycle
-earth's orbit and tilt
-seasons
-volcanic eruptions
human:
-air pollution
gh effect
created by greenhouse gases
-Allow short=-wave radiation to pass through
-trap long-wave radiation
-composition of gh gas
water vapour:95% of colume~50& of natural effect
carbon dioxide :~50% of human-induced effect
mathane:~15% of human-indeced effect; increasing 15 per year
chlorofluorocaebons: ~10% of human-induced effect; 10,000 times more efficient then carbon dioxide
changes in global energu balance
variations in solar radiation
natural change
long-term cycles causing maoe changes
11-year solar cycle
milankovirch cycles
graph: solar cycle variations, milankovitch cycles
global dimming
cooling effect of increased reflectivity due to air pollution
natural change
short-term natural effect- volcanic eruptions
feedback loops
when outputs of a system become inputs of the same system due to cause-and-effect
c;oses the system to become a circuit
can be positive (better and better) or negative (worse and worse)
temperature increase--
---evapuration increase---more rain- --teperature decrease
---snow melt increase---albedo decrease---absorb more heat---temperature increase
consequences of global climate change (with evaluation)
major implicarions:
-changes to hydrosohere
softwater, freshwater, crysphere
-changes in carbon stores
oil, undersea, forest
-extreme weather events
tropical: more heat more rain more strom
-changes in biomes
-effects on agriculture
-impact of change on people and places
evaluation:
  1. one place where impact is big (why
  2. one place where impact is small (why
hydrosphere
coverage and volume of sea ice and glaciers
-ocean salinity
-planetary albedo
-river characteristics
sea level
-tides
-storm surges
ocean temperatures
changes to carbon stores
oceans
-acidicy
-plankton
biosphere
-vegetation
-wildfires
ice
-permafrost
the carbon cycle
igneous rock-granite
sadimentary rock-lime stone
metamorphic rock-marble
extreme weather events
evapotranspiration
cloud formation
precipitation
pressure gradient
change in biomes
migration of living organisms
-latituudinal
-altitudinal
habitat
-soil
-vegetation
animal migration
-timing
-distance
changes to agriculture
crop yield
cultivation
-location
-access to water
soil erosion
-fertiliy
impact on people and places
health hazards
-mosquito borne diseases
-heat injuries
migration
-environmental refugees
ocean transport routes
-shipping
-tourism
Dhaka
confluence of two rivers
NGO: educate (alternativee lifehood, tempary shelers) and support
local support and adoption
healthcare: increases in patient-unclean water, increased temperature, more people
scientist: threats-rainfall increase-more flooding and soil erosion; cyclones; internal displacement ( crime,,forced strained drainge)
costal villagers: lose houses;lose livelihood-farmland destoryed and soltwater intrusion
riverside villeagers: river erosion; families split
slum dwellers: rural farmer to urban poor;s hared facilities; cramped condition; jobs mismatch-underemployment; child labours
urban swellers: flodwater (dismiss, pollution) lost personal property
social business workers: make adoptions; losing customers
Factor affecting vulnerability
exposure
coastal area
sensitivity
tropical monsoon; desert
adaptive capacity
developed
different place with different solution
1.governemnt-leed solution
kyoto protocol
paris agreement
personal mobility devices (PMD)-----last mile