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Calder Walton says both seek to topple the United States from atop world stage, with China's blend of money, influence, all-hands-on-deck approach posing the greater threat.

The International Energy Agency predicted last month that demand for global oil for transport will peak around 2026, plateau for all uses by 2028, and possibly hit a zenith by the end of the decade. Harvard experts say the forecasts track with what’s going on in the developed world, but the energy needs of less-wealthy nations pressing to develop their economies could foil expectations for years to come.

Joseph Nye argues that prudence results from the fear of creating unintended consequences in unpredictable systems and can develop into a norm of nonuse or limited use of certain weapons or a norm of limiting targets. Something like this happened with nuclear weapons when the superpowers came close to the brink of nuclear war in 1962, during the Cuban missile crisis. The Limited Test Ban Treaty followed a year later.

This study provides a whole-systems simulation on how to halve global CO2 emissions by 2050, compared to 2010, with an emphasis on technologies and costs, in order to avoid a dangerous increase in the global mean surface temperature by end the of this century.

This week Project Syndicate catches up with Joseph Nye, Professor at Harvard University, and author of Is the American Century Over? and the forthcoming Do Morals Matter? Presidents and Foreign Policy from FDR to Trump.

When do autocratic rulers in oil-producing countries support private sector development? We argue that the size of oil rents per capita has an important effect on ruler support for the rule of law, respect for private property rights, and other factors that promote private investment.