Worse, the chemical actually drove dramatic declines in bird populations, poisoned water sources, and was eventually found to cause long-term health problems in humans.

更糟糕的是， 这种化学物质实际上导致鸟类数量急剧下降、水源中毒，并最终被发现会对人类造成长期健康问题。

Ramone is going to walk us or drive us through the options that were available to him back then, the different sources of energy that he could have used to power the electric grid.

雷蒙将带我们或带我们了解他当时可以使用的各种选择，他可以用来为电网供电的不同能源。