Ignoring global warming just got more expensive

(Before It's News)

Desdemona Despair

By Eric Roston
23 December 2016

(Bloomberg) – If President-elect Donald Trump stops taking climate change into account when making federal energy policy, he’ll do so just as a leading projection of climate-related costs bolts upward.

William Nordhaus of Yale University is a central figure in the study of climate change and economics. In the early 1990s he developed what became the leading computer model for studying the effects of warming on the global economy. The Dynamic Integrated model of Climate and the Economy (DICE) has long given resource economists, students, and policymakers an opportunity to test how different scenarios might lead to quite different future climates.

Nordhaus recently updated DICE. He published results of an early test-drive of it this week in a National Bureau of Economic Research working paper, titled “Projections and Uncertainties About Climate Change in an Era of Minimal Climate Policies.”

Readers of recent headlines might be forgiven for assuming the “era of minimal climate policies” referred to is about the next four years. In fact, Nordhaus suggests, the “minimal policy” era is the one we’re currently in. [more]

Ignoring Climate Change Just Got More Expensive

ABSTRACT: Climate change remains one of the major international environmental challenges facing nations. Yet nations have to date taken minimal policies to slow climate change. Moreover, there has been no major improvement in emissions trends as of the latest data. The current study uses the updated DICE model to present new projections and the impacts of alternative climate policies. It also presents a new set of estimates of the uncertainties about future climate change and compares the results will those of other integrated assessment models. The study confirms past estimates of likely rapid climate change over the next century if there are not major climate-change policies. It suggests that it will be extremely difficult to achieve the 2°C target of international agreements even if ambitious policies are introduced in the near term. The required carbon price needed to achieve current targets has risen over time as policies have been delayed.

Projections and Uncertainties About Climate Change in an Era of Minimal Climate Policies

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