*Take these with as many grains of salt as you'd like*
-
Amazon
-
Cashews
-
Here's the HRW report mentioned in the previous link.
-
This page also has some info about ethical sources of
cashews toward the bottom.
-
Almonds
-
Here's some deeper research on the topic. Though almonds
do require a great deal of water, they have very high
nutritional and economic value. When compared to other crops,
almonds do exceptionally well in both of these dimensions and
actually come out quite well when considering nutritional and
economic value per unit of water to produce. As a result, the
story may be more nuanced and require more thought than conveyed
in the above article.