Tensions between the U.S. and China may re-escalate after officials of both countries hurled verbal attacks at each other about the origin of the coronavirus, observers say.

U.S. President Donald Trump Friday declared a national emergency, clearing the way for more federal aid to stream to states and cities to combat the coronavirus pandemic.

The COVID-19 (coronavirus) pandemic is far from the first proof of how intertwined we are as a global community. The climate crisis and the refugee crisis have long been glaring examples that the wars or CO2 emissions on one continent risk the lives and well-being of people on another continent. …