French vintners are lighting candles to thaw their grapevines to save them from a late frost following a winter warm spell, a temperature swing that is threatening fruit crops in multiple countries.

The Paraná River, one of the main commercial waterways in South America, has reached its lowest level in nearly 80 years due to a prolonged drought in Brazil that scientists attribute to climate change. At peril is a vast ecosystem that includes potable water for 40 million people, the livelihood of fishing communities and farmers, and the navigability of a major grain export hub.

An oil spill on the Peruvian coast caused by the waves from an eruption of an undersea volcano in the South Pacific nation of Tonga prompted dozens of fishermen to protest Tuesday outside the South American country's main oil refinery.