A new report by Oxfam has found the richest 10 percent of the world’s population produce half of the Earth’s climate-harming fossil fuel emissions. The poorest half – about 3.5 billion people – are responsible for only around 10 percent of total greenhouse gas emissions. Oxfam’s report is titled “Extreme Carbon Inequality: Why the Paris climate deal must put the poorest, lowest emitting and most vulnerable people first.” We speak with the report’s author Tim Gore, head of policy for Oxfam International on food, land rights and climate change.