Over 70% of the world is water, yet almost 1 billion people across the world lack access to clean water. It is relatively simple to install a professional water filtration plants in these areas, and now it is even easier to donate towards it:
“When a person dies, his deeds come to an end, except for three: ongoing charity (Sadaqah Jariyah), knowledge that is benefited from, and a righteous child who prays for him.”
(Sahih Muslim)