World wildlife numbers down 25% in three decades.
| Carbon monoxide aids shift from active infection to a drug-resistant dormant TB infection A toxic gas present in air pollution and tobacco smoke plays a significant role in triggering tuberculosis infection, according to a new study from researchers at the University of Alabama at Birmingham (UAB).The UAB study focused on carbon monoxide (CO), a colorless, odorless gas present in tobacco smoke, and vehicle and manufacturing plant emissions. Also, CO is produced naturally in brushfires and volcanic gas. |
| World wildlife numbers down 25% in three decades. Loss of natural habitat and over-exploitation of species, such as over-fishing, are to blame for the collapse, according to a report that highlights a massive loss of biodiversity across the world. |