Stefanie Held spoke with EarthSky about carbon capture and storage, a technology being developed to first capture the CO2, then store it safely underground.
Natural killer or 'NK' cells really make a difference between health and disease, says Christine Biron, "They can kill, or help kill, virus- infected cells."
Andy Jarvis said studies have focused primarily on wheat, corn and rice, but food security on a global level depends on a lot more than those three big crops.