00:06Warmer or colder than average ocean temperatures in one part of the world can influence weather
00:11around the globe. Boggles the mind, right? Here's how it works. During normal conditions,
00:17trade winds, which blow from east to west, push warm surface waters towards Asia,
00:22piling it up in the western Pacific. In some years, though, the trade winds weaken. The
00:27warm surface water moves eastward and reduces upwelling of cold water off the coast of South
00:32America. Climatologists call this El Nino. Its climate impacts show up mostly in the wintertime
00:39over North America. The warmer ocean fuels an intensification and southward shift of the jet
00:45stream. This brings flooding to the southern United States and warmer, drier conditions over parts of
00:51the Pacific Northwest, northern U.S. and Canada. But eventually, those trade winds pick up again
00:57and sometimes become even stronger than normal. When that happens, they blow the warm water back
01:03into the western Pacific and restart the upwelling of cool water towards the surface in the eastern
01:08Pacific. These strong trade winds are a signature of what is called La Nina. Unusually cold conditions
01:17in the tropical Pacific that displace the jet stream northward. La Nina can lead to drought
01:21in the southern U.S. and cooler temperatures, heavy rains, and flooding in the Pacific Northwest.
01:28El Nino and La Nina together are part of a cycle that influences extreme weather and can impact food
01:34production, water supply, and even human health, not just in the U.S., but in many parts of the globe.
01:47El Nino and La Nina together are part of a cycle. It is as Mahatima
01:47snapch Çaarindo Donald while he goes westован. Yes, all right.
01:49Well, this here is a situation that is colocar in the Permale thehydram Theater.
01:51It is fairly exactly thatHerasa That day has been over.
01:51It is a situation that has been over with the financial crisis. That has been over divorce in the
01:52setting. The way that our MOai is in the same position that we ended up with, we can talk about
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