BBC: Dosing farm animals with antibiotics increases greenhouse gas emissions from cow dung, research suggests.
Scientists say the drugs boost methane production in cowpats - apparently by favouring antibiotic-resistant, methane-producing organisms in the gut.
Antibiotics also change the microbes which inhabit dung beetles, although apparently with no adverse effects.
The researchers say it's proof that antibiotic use on farms has unintended, cascading effects on the environment.
For the new...