This worksheet helps students (especially EAL/ESL students) to identify knowledge claims (which they should have already been introduced to in a prior lesson), especially using elements of grammar with which they are familiar. They are then encouraged to think critically about whether or not certain ideas about climate change may be true, and why. The final italic line should be cut off with scissors and only given to students towards the end of the lesson (as extension or plenary) to encourage them to consider how the sources of information can affect their answers. This activity is particularly appropriate for students studying Global Perspectives, Theory of Knowledge, or Critical Thinking.