Pervez Hoodbhoy is a Pakistani nuclear physicist, but this chat is about the various tribal and political groups involved in Pakistan's dealings with Afghanistan.

Angella MacEwen is an economist with the Canadian Union of Public Employees. She favors taxing wealth and corporate capital gains.

Timothy Donais describes the difficulty of the UN's protecting of civilians in enclaves in African conflict zones, such as Mali, Congo, and South Sudan.

Maria Puerta, James Ranney, Doug Saunders, and Robert Schaeffer discuss the conflicts in Latin America, with China, and whether arbitration can work.

Mark Winfield directs a York program in sustainable energy. We talk about it and affordable alternatives (i.e. not nuclear), and the politics of adopting it in time.

Retired peace professors Nigel Young and Lawrence Wittner disagree as to whether nationalism is diminishing around the world, and if so, why.

Peter Wadhams and Paul Beckwith say that thermohaline currents distribute heat around the world, starting from “chimneys” that pour cold water down the oceans. You can watch this series (or listen to them as audio podcasts) on our website – https://tosavetheworld.ca – then scroll down to discuss.

Victor Kogan Yasny is a political analyst with the Yabloko Party. He says that young Russians are aligned with Putin because they know nothing else. You can watch this series (or listen to them as audio podcasts) on our website, then discuss here: https://tosavetheworld.ca/294-russia-is-waiting/#comments.

M.V. Ramana and Susan O'Donnell work on nuclear risks. Both seriously dispute statements Doug Saunders made in a column about Fukushima. You can watch this series (or listen to them as audio podcasts) on our website, then discuss here: https://tosavetheworld.ca/293-is-nuclear-winning/#comments

William Ryerson and Richard Stratton both produce TV serial dramas. Ryerson's shows are designed to influence the public opinion and behaviour of cultures.