Climate change Flashcards
What are the 3 recent evidences for climate change?
Melting ice caps.
Rising sea levels.
Seasonal changes.
What is the name for the collective changes of the Earth’s movements on its climate over thousands of years?
The Milankovitch cycles.
What are the 3 Milankovitch cycles called?
Eccentricity
Axial tilt
Precession
What is eccentricity?
The path of the Earth as it orbits the sun.
Eccentricity shifts from being __________ to ___________ every ____________ years.
circular
elliptical
100,000
What does the axial tilt cause?
Night and day.
The ___________ moves_______________ between 21.5-24.5 degrees every __________ years.
axial tilt
back and forth
41,000
What is the precession?
The natural wobble cycle of the Earth.
How long does the precession cycle last?
26,000 years.
What is the sunspot cycle and how long is it?
The period when sunspots increase from minimum to maximum over 11 years.
When sunspot output is __________, ______________ on the sun’s surface cause _______________.
When sunspot output is ____________, _____________ is ___________. Causing _________ temperatures on Earth.
maximum
large explosions
solar flares
minimum
solar output
reduced
lower
When sunspot output is __________, ______________ on the sun’s surface cause _______________.
When sunspot output is ____________, _____________ is ___________. Causing _________ temperatures on Earth.
maximum
large explosions
solar flares
minimum
solar output
reduced
lower
How can volcanic ash impact the Earth’s temperature?
Volcanic ash can block out the sun., reducing temperatures on Earth.
The sun gives off _____________ radiation.
The earth ___________ and gives off ______________ radiation.
short-wave
warms up
long-wave
How does changes in agriculture contribute to global warming?
__________________ to increase ___________________ releases ______________________.
Fossil fuels are often used in the production of ________________________ and ______________________________.
Deforestation
farmland cover
greenhouse gases
fertiliser and pesticides
transportation of food
How does increasing the use of fossil fuels contribute to global warming?
Fossil fuels are used in _______________, _________________ and generating ______________.
Burning fossil fuels releases ________________; a _____________________ into the atmosphere.
transportation
manufacturing
electricity
carbon dioxide
greenhouse gas
The burning of fossil fuels accounts for how much percent of all human-produced CO2 emissions?
87%
Carbon capture works by fitting a _______________ capture plant next to a __________________.
Once captured, the carbon gas is ______________ and transported through a ____________ to an __________________.
carbon dioxide
power station
compressed
pipeline
injection well
An injection well injects ______________ into the ground to be stored in ______________________.
liquid carbon
geological reservoirs
What are 4 ways to mitigate climate change?
Carbon capture
Planting trees
Renewable energy sources
International agreements
What happened during the 2015 Paris Agreement?
195 countries agreed to keep global temperature increases below 2 degrees Celsius.
What are 3 ways to adapt from climate change?
Change in agricultural systems
Managing water supply
Reducing the risks of rising sea levels
How is the Maldives reducing the risks of rising sea levels?
By building a 3m sea wall around the capital of Male.
