Climate Change Flashcards
Biosphere
all parts of the Earth’s surface and atmosphere where living things exist.
Hydrosphere
the mass of water lying over, on or under the surface of the Earth as oceans, seas, lakes and rivers.
Atmosphere
This consists of gases, mostly nitrogen, oxygen and carbon dioxide
Lithosphere
This consists of rock. It is the cold, brittle and elastic outermost shell of our planet.
How do the four spheres interact?
Water shapes the land through erosion and sedimentation.
Water supports life and is essential for ecosystems.
Land provides habitats and resources for living things.
Air and living things exchange gases like oxygen and carbon dioxide.
Gases contributing to the Greenhouse effect and how are they produced
Carbon dioxide:
burning of fossil fuels, deforestation and industrial processes.
Methane:
Released from agricultural activities, waste decomposition.
Nitrous oxide:
agricultural activities, industrial processes, burning of fossil fuels.
Water vapour
Greenhouse Effect steps
- solar radiation passes through atmosphere.
- some is reflected out by surface
3 some is absorbed and warms up
4 radiation formed called infrared out of atmosphere
5 infrared also absorbed by greenhouse molecules ad warms earth.
how has climate change impacted biodiversity- examples
Melting glaciers and ice caps
Sea-level rise
Enhanced Greenhouse effect
an increase in natural greenhouse effect caused by human activity
sustainable ecosystems
diverse and provide for its organisms
impacts of eghe
climate change/global warming
evidence for climate change
-global temp is rising
-oceans are getting warmer
-sea level rising
-ocean acidification
-decrease in arctic sea ice
-ice sheets shrinking
-snow cover decreasing
-extreme weather events increase
explain Ocean Global Conveyor Belt
driven by ocean currents around the world.
deep currents stat at poles, where seawater becomes denser and sinks.
any increase in global temp affects density and lowers salinity.
ice acts as insulator to underlying water.
greenhouse effect impacts
Rising temperatures
Rising sea levels
Ocean acidification
Biodiversity loss
climate change def
long term shifts in temp and weather patterns by humans
respiration
releases carbon dioxide into atmosphere
available for plants for photosynthesis
carbon cycle: what is carbon used for in living things?
to build biological tissue
carbon cycle: how decomposers return carbon to atmosphere:
break down matter, release carbon, respiration
carbon cycle: where carbon in coal and oil came from
fossils broken down
ecosystem services
all the things the environment does for us
types of ecosystem services
support services: create and replenish
provisioning: raw materials
regulating: moderating
cultural: activities, discovery
what is required for an ecosystem to function properly?
biodiversity
solutions for a sustainable future
rewild planet
conserve what we have
increase sustainable loving acroos world
increase renewable energy
regenerative agriculture
sustainable fishing
photosynthesis
take in CO2, cmbine with hydrogen from water, turns into glucose. incorperates carbon into living things.
human contribution to eghe
burning fossil fuels
releasing chemicals into atmosphere
deforestation
agriculture, development
