‘Pessimists, anti-capitalists, conservatives and greens, take note – we are much more peaceful now than we used to be, says the psychologist.’  (via  New Scientist).

Related:

• Bombings, Beheadings? Stats Show a Peaceful World (maboulette.wordpress.com)
• World Becoming Less Violent: Despite Global Conflict, Statistics Show Violence In Steady Decline (jhaines6.wordpress.com)
• Steven Pinker has a blinkered appreciation of war and peace | the big issue (guardian.co.uk)