Two years after the Paris climate agreement was signed, the French capital this month again attracted the world’s great and good, who gathered for President Emmanuel Macron’s One Planet summit.

When famine strikes, governments and international donors step in with life-saving aid.

President Donald Trump’s withdrawal of the US from the Paris climate agreement leaves the US without a global warming policy. That is alarming. But the world’s response — to double down on the pact in opposition to Trump — should also cause concern.

Poverty is humanity’s cruelest affliction. If you are extremely poor, you cannot afford to avoid even the easily curable diseases that cause every sixth human death.