Global warming could change strength of El Niño

Global warming could impact the El Niño Southern Oscillation, altering the cycles of El Niño and La Niña events that bring extreme drought and flooding to Australia and many other Pacific-rim countries.<img src="http://feeds.feedburner.com/~r/sciencedaily/~4/QRY-RANy0Uk" height="1" width="1"/>

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