climate change and human activity. Flashcards
what can human activity do?
increase levels of greenhouse gasses in the atmosphere.
the amount of carbon D in the atmosphere has increased but what does this correlate with?
the increase with the amount of fossil fuels being burnt.
what does fossil fuels contain?
carbon that has been locked up for millions of years.
what does burning fossil fuels do?
releases the stored carbon D into the atmosphere.
how does deforestation also lead to an increase of carbon D in the atmosphere?
fewer trees taking up the gas for photosynthesis.
what are the activities that increase the amount if levels of methane in the atmosphere?
decomposition of rubbish in landfill sites.
increase in animal farming- it is produced by animals during digestion and by the decomposition of their waste materials.
what could happen if average global temp keeps rising?
rise in sea level- devastating floods and costal erosion.
more frequent and sever storm events.
changes in amount and timing of rainfall.
increased number of heat waves.
more droughts.
changes to the disruption of plants and animals.
food shortages in some areas.
