" I dwelled so much on my disappointment that it almost physically hurt, " Paris-based journalist Joelle Diderich told me recently, after canceling five trips last spring.

住在巴黎的记者乔埃乐·迪德里奇，光是去年春天就取消了五个行程，她跟我说：“我一直沉溺于失望当中，几乎连身体都真的痛起来了。”

Joelle has been fishing on the Nile for decades, but industrial waste dumped into the water is having a devastating effect on the river's ecosystem.

乔尔几十年来一直在尼罗河上捕鱼，但倾倒在水中的工业废物对尼罗河的生态系统造成了毁灭性影响。