Panama Canal to cap ship transits due to El Nino drought

The Panama Canal will cut the number of ships passing through it starting next month due to a lack of rainfall as the El Nino weather pattern takes hold over the region , the canal operator said on Thursday.

The vital waterway across Panama in Central America links the Atlantic and Pacific Oceans. About 5% of global maritime trade uses it, cutting thousands of kilometers off journeys and avoiding a dangerous route around the southern tip of Argentina.

From September 3, the waterway will allow 34 ships to pass through it, instead of the current 36, the Panama Canal Authority said.

From September 15, the number of ships allowed to pass through it will drop to 32.

That Panama is experiencing severe drought even though it is one of the wettest nations on Earth is a sign that El Nino has formed in a warmed-up Pacific Ocean. Rainfall between May and August was about 34% below the historical average for the period, the canal operator said.

El Nino is characterized by unusually warm ocean surface temperatures in the central and eastern Pacific, with knock-on effects including droughts, floods and wildfires.

Those changes in winds and ocean temperatures will likely turbocharge extreme weather events because of how warm the world already is from fossil fuel pollution, experts say.

Scientists say they expect El Nino to get so intense this late fall and early winter that "it would rank among the largest El Nino events in the historical record going back to 1950."