In U.S. jurisprudence, the standard for conviction in a criminal proceeding is "beyond a reasonable doubt" -- at least 90% certain, in the conventional understanding. The prevailing standard in civil proceedings is the "preponderance of evidence" -- more likely true than not -- which implies greater than 50% likelihood.
CGD Policy Blogs
**This post is co-authored with CGD senior fellow David Wheeler
Today's Washington Post column by David Ignatius finally inches popular understanding in the U.S. a bit further in the right direction on why climate change could be so costly to human society. It isn't just the direct costs of seawalls and more destructive hurricanes that climate change will bring. It's the risk that institutional arrangements to deal with those costs will not be resilient and will collapse under the resulting pressure--so that, as Chinua Achebe suggested about post-colonial West Africa, things do literally "fall apart".
From D.C. to Dhaka, scores of people gathered around live broadcasts of President Bush to play CGD State of the Union bingo and watch the president’s first address to a new Democratic majority in Congress. The rules are simple: listen for key policy terms in Bush’s address and be the first to mark your bingo card. The point: U.S.