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Students will research and evaluate information about global warming, identify decision-making criteria for action or lack of action, and decide what level of certainty is sufficient to take action. They should debate the issue of when we know enough to act, based on the results of their research. This activity is part of the Ground Truth Studies Teacher Handbook, which provides more than 20 activities to build student understanding of global change and remote sensing, and includes background chapters for teachers, glossary, and appendices.
This resource is located on page 87 of the PDF document.