And what happens is when you start flooding permafrost areas, permafrost starts to deteriorate.

“永久冻土区被水淹没后会开始解冻。

But there was absolutely no extra fertile land beyond the flooding area.

同时还有一些盈余可以进行贸易。

Apparent tornadoes weren't the only problem. The storms brought sudden flash flooding the areas of northern Texas.

显然龙卷风并不是唯一的问题。暴风雨夹带的突然洪水冲垮了德克萨斯北部地区。

The maria are made of darker, basaltic material, which means they probably formed from lava flooding older areas.

月海是由更暗的玄武岩物质构成的，这意味着它们可能是由淹没在更古老的地区之上熔岩形成的。

A dam has burst in the town of Mariana in southeastern Brazil flooding a large area with mineral waste.

在巴西东南部的马里亚纳市，废水池发生溃坝事故，大量矿物废料喷涌而出。

And that's worrisome because Tampa Bay area is so low and so prone to flooding the area around it.

这很令人担忧，因为坦帕湾地区地势很低，周围地区很容易被洪水淹没。