Climate change Flashcards
What is meant by the GCSE command word ‘ asses ‘?
Rank in order of importance/significance
What is the name given for the cooling period in Earth’s history?
glacial period
What is the meant by the term ‘ inter glacial’ ?
Period of global warming
True or False there is a correlation between Co2 atmospheric concentrations & global temperatures
true
Identify x4 pieces of evidence for past climate change
Glacial retreat , ice core analysis , sea level rise
Explain how scientists use tree rings to tell us us about past climates
scientists study the thickness of the rings in order to tell us what the climate was like - the thicker the ring , the warmer and wetter the climate was
explain how how scientists use ice cores to tell us about past climates
scientists use advanced technology to analyse the gases trapped in the ice core layers the more carbon dioxide present , the warmer the climate was
Which piece of evidence for past climates change is most reliable ?
ice core analyses due to the technology they use to analyse the ice cores
Give x3 examples of fossil fuels
coal , oil & natural gas
What are greenhouse gases ?
potentially harmful gases that trap heat in the earth’s atmosphere carbon dioxide and methane
What is the ‘enhanced greenhouse effect’?
human activities increasing the amount of of greenhouse gases being released in the atmosphere this is trapping extra heat , causes the earth’s temperature to rise
Identify x3 human activities that are enhancing the greenhouse affect
deforestation , transport & industry
true or false ? developing ( poor ) countries have the highest greenhouse gas emissions
false
What are x4 natural causes to climate change?
Orbital theory , volcanic activity , solar activity & asteroid collision
How has volcanic activity impacted upon the earth’s climate in the past
global warming during times in Earth’s history when extreme amounts of volcanism emitted large amounts of greenhouse gases.
