El Niño events have a big influence on weather throughout the world

Availability of water having huge impact on agriculture

Areas affected include Australia, Russia and Ukraine

Implications extend well beyond tropical storms

The potential disaster that looms is a great concern.

Below-normal rainfall has produced driest crop year since 2012.

Look for many changes as El Niño gets underway.

Negative Pacific Decadal Oscillation could reduce precipitation.

This year’s 62-day cycle of cold has proven resilient.

Argentina among those welcoming the demise of La Niña.