We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Colleen Hagerty Colleen Hagerty is a writer focused on emergency preparedness.

This story is free to read because readers choose to support LAist. If you find value in independent local reporting, make a donation to power our newsroom today. A group of environmental researchers ...

Soil color could replace expensive chemical tests, helping farmers monitor fertility and carbon faster and more safely.