In addition to thermostat and security sensors, Iris will help you monitor carbon monoxide levels, water heaters, pet doors and the moisture levels of your house plants.

CNN: 5 fun and odd gadgets from CES

At altitude, notably, for instance, approaching the Himalayas, it is far trickier to grasp just how factors such as wind direction, air pressure, latent heating and moisture levels interact to deliver monsoon rains.

ECONOMIST: India��s climate: Monsoon, or later | The

They spiked droplets of human mucus with live flu virus, and then exposed it to air with varying levels of moisture.

WSJ: Burning Question | Why Is Flu Common in Winter?

Subsoil and topsoil moisture in the Plains states are well below the levels of last year, though recent rains have improved things a little.

ECONOMIST: Farming