human activities

Antibiotics are resistant to ... dolphins
Dolphins in the wild are seriously affected by antibiotic-resistant bacteria, which is thought to only occur in humans.
Could it be that humans have turned the Sahara into a desert?
Who would have thought this sandy desert a few thousand years ago was a vast meadow. And it is man who contributed to the desertification of Sahara.
Human activity has caused nearly 1,000 earthquakes
A group of geologists in the UK have established a database of earthquakes caused by human activities.