Is climate change a catastrophe that warrants immediate action?" A yes or no answer will not suffice! Find an article in the popular media. that addresses the "costs" of global warming, whether through the costs of action (e.g., to institute a mitigation measure or regulation) or the costs of inaction (e.g., coastal flooding, soil salinization). These costs may be related to human health, biodiversity, the economy, damages to infrastructure, or some other relevant concern.