You were going to say humans, right? All those guns, bombs, chemicals and G0d-knows-what-else we use to kill each other.

Okay, we’re second, at 475,000 deaths annually. But it’s a distant second to the lowly mosquito, which, according to Bill Gates, kills 725,000 people a year; 600,000 of them by transmitting malaria. Another 200 million people are incapacitated annually by the disease.

GENEVA — Two leading U.N. agencies are calling for greater action to provide safe drinking water and basic sanitation to more than three billion people. A joint report by the World Health Organization and U.N. Children’s Fund says more must be done to close the gap between the billions who have access to improved water and sanitation and those who do not.

A new cost-efficient and environmentally-friendly method of desalination that could use up to 80 per cent less energy has been developed by a team of Sydney researchers.

With an El Nino weather pattern expected to develop in Spring, possibly triggering droughts and bushfires, researchers from the UTS Centre for Technology in Water and Wastewater (CTWW) have developed an innovative way of desalinating water for irrigation.

Being poor is more than just the amount of money a person has.