Carnegie Institution for Science

Plant organ development breakthrough

Plants grow upward from a tip of undifferentiated tissue called the shoot apical meristem. As the tip extends, stem cells at the center of the meristem divide and increase in numbers. But the cells on the periphery differentiate ...

Dec 03, 2012 not rated yet 0 | with audio podcast

Global warming's record-setting pace

The pace of global warming over the last century has been about twice as rapid over land than over the oceans and will continue to be more dramatic going forward if emissions are not curbed. According to ...

Feb 17, 2014 4 / 5 (24) 11

Drought hormones measured

Floods and droughts are increasingly in the news, and climate experts say their frequency will only go up in the future. As such, it is crucial for scientists to learn more about how these extreme events affect plants in ...

Apr 15, 2014 not rated yet 0

What makes cell division accurate?

As all school-children learn, cells divide using a process called mitosis, which consists of a number of phases during which duplicate copies of the cell's DNA-containing chromosomes are pulled apart and ...

Jan 23, 2014 4.5 / 5 (6) 0

Climate: Meat turns up the heat

Eating meat contributes to climate change, due to greenhouse gasses emitted by livestock. New research finds that livestock emissions are on the rise and that beef cattle are responsible for far more greenhouse gas emissions ...

Jul 21, 2014 2.5 / 5 (11) 3

Geoengineering by coalition

Solar geoengineering is a proposed approach to reduce the effects of climate change due to greenhouse gasses by deflecting some of the sun's incoming radiation. This type of proposed solution carries with it a number of uncertainties, ...

Feb 21, 2013 not rated yet 0