Each year, the biosphere balances its atmospheric budget: The carbon dioxide absorbed by plants in the spring and summer as they convert solar energy into food is released back to the atmosphere in autumn and winter. Levels of the greenhouse gas fall and rise with growth and harvesting.

Iowa corn farmers have a lot of clout during the political cycle in America. Former US Vice-President Al Gore even sided with environmentalists and embraced ethanol - which all of science said was a bad idea - and later acknowledged it was just to appeal to Iowa. They help pick presidents and now it turns out that their 2.2 billion bushels of corn are helping to save the planet too.

The Moderate Resolution Imaging Spectroradiometer (MODIS) instrument that flies aboard NASA's Aqua satellite captured a visible picture of Tropical Storm Adjali on Nov. 19th at 9:05 UTC (1:05 A.M. Pacific) curving to the southwest on its trek through the Southern Indian Ocean.

The MODIS image showed that the storm began curving to the southwest, and despite slight weakening, thunderstorms circled around the low-level center.

Volcanoes have long been known to have an impact on climate - the 1815 Tambora volcanic eruption is famous for its impact on climate worldwide, making 1816 the 'Year Without a Summer'.

Maybe they are the reason global warming has not taken off the way climate researchers estimated it would. Sulfur dioxide gas that eruptions expel might be cooling the atmosphere more than previously thought, contributing to the recent slowdown in global warming, according to a new study.

Nationals MP George Christensen told Parliament that the hot temperatures of 1896 have been "wiped from the official record". It's a bit more complicated than that. AAP Image/Lukas Coch

By Neville Nicholls, Monash University

A new index to measure the magnitude of heat waves finds that under the worst climate scenario of temperature rise, estimated to be as much as 8.6 degrees Fahrenheit, extreme heat waves might become the norm by the end of the century.

They project that heat waves like the one that hit Russia in summer 2010, the strongest in recent decades, could occur as often as every two years.

Air pollution is harming India's wheat farmers. EPA

By Zongbo Shi, University of Birmingham

Researchers have long known that man-made climate change will harm yields of important crops, possibly causing problems for the world’s food security. But new research shows air pollution doesn’t just harm crops indirectly through climate change; it seems to harm them directly.

Tropical Cyclone Nilofar is closing in on the border between Pakistan and northwestern India and NASA's Terra satellite caught it while it passed overhead from space.

Wind shear continued to affect the storm and from their image it looks more like a comet than a tropical cyclone.

A recent study shows plants may absorb more carbon than we thought. Jason Samfield/Flickr, CC BY-NC-SA

By Pep Canadell, CSIRO

Through burning fossil fuels, humans are rapidly driving up levels of carbon dioxide in the atmosphere, which in turn is raising global temperatures.

NOAA's GOES-East Satellite captured the birth of Tropical Depression Nine formed over the western Bay of Campeche, Gulf of Mexico and is forecast to make a quick landfall on Mexico's Yucatan Peninsula.

The clouds associated with the depression stretched over the Yucatan Peninsula and into the western Caribbean Sea were captured on Oct. 22nd at 1600 UTC (12 p.m. EDT).