Water hyacinths also cover the surface, cutting off sunlight, outcompeting other plant species and starving water of oxygen. That means there are fewer fish for Macharia to catch in the first place.

Singh suggested exploring water hyacinth, an invasive species that can be disastrous for the natural ecosystem, blocking out sunlight and reducing fish populations in the lakes and rivers where it ...

Microplastics are pervasive in the environment and often so small they can’t be seen with the naked eye. Removing them has ...