The Little Green Data Book 2010

The little green data book 2010 show
wide disparities across regions. For example, urban air
pollution declined in most countries between 2000 and 2006
(the most recent year for which data is available), with the
greatest progress in low-income and lower middle-income
countries. But concentration levels are still nearly three
times higher in these countries than in high-income
countries. The book also estimates adjusted net savings,
which measures the annual changes in a country's total
wealth. The literature shows that a positive adjusted net
savings rate is a necessary condition although not a
sufficient one for sustained growth. Unfortunately, many
economies appear to be failing this practical test. The book
is a knowledge resource that aids policymakers in using
environmental data more effectively to support
priority-setting and improved development outcomes.