Atmospheric rivers are gaining in intensity across California and the western United States. Communities need to adapt to the havoc wrought by this weather phenomenon.

The country’s massive economic problems will be a vexing challenge for whoever becomes president.

Both China and India aspire for the role, but it is not clear if nations that belong to the group see either of them as a benign leader or their champion

India's diplomacy will be tested if the Gaza war continues indefinitely, or if relations between Israel and Arab nations further decline.

Wars are fought not only on the battlefield but also in domestic political debates and in histories written after the fact. In the case of the US invasion of Iraq 20 years ago, we are still in this final phase, seeking an elusive consensus about the war’s legacy.

Committed global action at every level of government, the economy, and society is needed to tackle such a complex, multifaceted challenge, and a growing awareness that time is running out should help…