Did you know that a butterfly simply flapping its wings can change the course of weather patterns?

“It is safe to predict more unpredictability,” says a special report in The Economist on the Indian monsoon that continues to defy the best forecasts made by the best of models.

An El Nino weather pattern has strengthened over the last two weeks, the Australian Bureau of Meteorology (BOM) said on Tuesday, with now only a "small chance" the event will be over by the end of

One of the strongest and wettest El Ninos will soon pummel East Africa, bringing heavy rains, floods and malaria.

Sub-par rainfall across India for more than two weeks has pushed the monsoon deficit to 10% below normal, increasing worries of a second successive drought year in the country .

This year's El Nino weather pattern could be the most powerful on record, US forecasters said, while warning that the effects of the weather system are never certain.

In another sign that El Niño is gaining strength and could soak California this winter, sea surface temperatures in the Pacific Ocean have increased to their highest level so far this year.

The El Nino climatic phenomenon has hit South America’s southern cone with a vengeance in the past week, causing flooding and landslides that have damaged crops, cut off roads, disrupted copper min

Both are phenomena associated with warm water in the Pacific that can separately impact weather.