If you cannot access the information through the hyperlink given search the site using key words from the title of the article you require. Group students and distribute information from all of the web sites listed. All groups could compare the information from all the web sites or groups could take notes from one web site and then report back their findings to the class. The information will need to be simplified to suit the reading age of the students. For students to evaluate information they research, they should be aware of accepted scientific methods for making claims about greenhouse issues and suggesting courses of action, for example evidence, measurement, models and tested models.
Students explain their answers.
Discuss the need to look after the ocean as it is a resource that helps diminish the enhanced greenhouse effect. 23 and 24, has information on seagrasses around Australia. Groups present their explanation to the class. Students ask other groups their questions. Additional learning Students may realise from reading content on some greenhouse-related web sites that there is still considerable debate about the amount of carbon dioxide that different carbon sinks are able to absorb.