Creatures that can’t smell food are in trouble, and they are even worse off if they can’t scent danger.
Scientists may be one step nearer to the dream solution to low-carbon energy if they can suck carbon dioxide from the air and convert it directly into gasoline, diesel or jet fuel.
They absorb harmful carbon dioxide, turning it into stone.
A worldwide improvement in emissions is possible if governments adopt the highest energy efficiency standards for lighting and household appliances, researchers say.
Global carbon dioxide emissions increased 2 percent in 2017, after having been flat in 2014-16, and China and the developing countries were the reason for the increase.
Engineering the climate to help reverse 200 years of human-induced warming is back on the scientific agenda.