climate change webquest quiz Flashcards
(10 cards)
what is weather
atmospheric conditions, including temperature, precipitation, wind, and humidity, in a particular location over a short period of time, such as a day or a week
what is climate?
the average of the weather in a region over a long period of time
what is greenhouse gases?
any gas in the atmosphere (such as water vapour, carbon dioxide, and methane) that absorbs lower-energy infrared radiation
explain the greenhouse effect and diagram
greenhouse gases trap heat in the earths atmosphere and keep it warm. the earth creates infrared radiation which is energy released back into space which is trapped in the ozone layer. this makes the earth warmer. too much causes global warming which is bad for the earth
sunlight — energy absorbed by land + water — infrared radiation—- energy trapped by greenhouse gases—- energy released back into space
list the 4 trends that a warmer climate can result in
rising global temperatures
melting ice and snow
rising sea levels
changes in precipitation patterns
list the most important greenhouse gas emitted by humans
carbon dioxide
where do greenhouse gases come from?
volcanic eruptions
forest fires
decomposition of organic matter
fossil fuels
industry
deforestation
list 5 factors that can prove that the earths climate has changed in the past
ice core analysis
fossil evidence
tree rings
sedimentary levels
changes in sea levels and ice sheet positions
ice core analysis?
what’s happening now?
track how greenhouse gas levels and temperatures have changed over time, showing that carbon dioxide levels are now higher than at any point in the past 800,000 years.
what will happen in the future?
we’ll face more warming, ice melt, and extreme weather in the future.
why does it matter?
climate change affects our health, food, water, weather, and future safety—ice core data helps us understand the risks and prepare for what’s coming.
