IGCSE marine science - climate change section 6.8

the section on climate change

syllabus:
Candidates should be able to: 

1 state that the climate of different regions on Earth has changed significantly between 335 million years ago and the present day, with reference to carbon dioxide level and temperature 

2 describe the effects of present-day pollution of the air by methane and carbon dioxide 

3 describe the effects of increasing atmospheric carbon dioxide concentrations on sea water

4 explain the role of the ocean in absorbing heat and the effect on the ocean of heat absorption

5 compare the effects of thermal expansion of sea water and melting of land-based ice on sea level rise

 6 describe possible impacts of increasing greenhouse gases on marine ecosystems