There are so many interesting, relevant and often provocative articles and opinions at The Conversation. Though written with an Australian perspective, the articles are global, thus, equally applicable to the US lifestyle and viewpoint.

• Human carrying capacity and our need for a parachute

• Oil for lives? When governments help bad corporations

• Longer life through coffee drinking?

• Lessons of economic history: Nixon, Obama and the politics of austerity

• Rio+20: We do not need more global sustainability conferences

• Churnalism on the rise as news sites fill up with shared content and wire copy