Trade between the world’s two biggest economies has ballooned in recent decades, bringing significant benefits but also perils that have led to calls to rethink the relationship.

See how six countries are faring amid efforts to protect 30 percent of the planet’s land and waters by 2030, and what will be saved if they succeed. 

A global surge in avian flu outbreaks in birds and some mammals is worrying poultry farmers, scientists, and health experts. The trend is provoking questions about the future of the disease and globa…