Leading global forecasts widely underestimate the future costs of climate change, a new paper warns.
The findings, to be released Monday in the Review of Environmental Economics and Policy, say projections used by the United Nations Intergovernmental Panel on Climate Change rely on outdated models and fail to account for “tipping points” ― key moments when global warming rapidly speeds up and becomes irreversible.
The IPCC, established in 1988, is the leading international body for assessing climate change, and took on an expanded role after every country on Earth signed the Paris Agreement, the first global pact to cut greenhouse gas emissions. By relying on inaccurate economic models, the organization is misleading policymakers around the world about the risks of climate change, according to the researchers at the Environmental Defense Fund, Harvard University and the London School of Economics who co-authored the paper. [Continue reading…]