RT Book, Section A1 OECD T1 Regional contribution to population change JF OECD Regions at a Glance YR 2011 FD Aug 26 AB In 2009, 10% of regions accounted for approximately 40% of the total population in OECD countries. The concentration of population was highest in Australia, Canada, Iceland and the United States, where differences in climatic and environmental conditions discourage human settlement in some areas (Figure 1.1). PB Organisation for Economic Co-operation and Development DO 10.1787/reg_glance-2011-6-en UL http://www.oecd-ilibrary.org/;jsessionid=2jakmvf3w8an9.x-oecd-live-02content/chapter/reg_glance-2011-6-en