Who is to blame for global warming? Negotiations on reducing global emissions have usually foundered on the blame game, and who pays the bill. It’s a complex question. But researchers at Oxford University have put together a short engaging video that looks at all the angles including current, historical, national, and per capita emissions. And importantly, rebuts the most common excuses for passing the buck and not taking action. It leaves the top offenders with nowhere to hide and North Americans with no excuses. Check it out here