News tagged with water availability

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One in ten will live in climate hotspots by 2100

One out of 10 people on Earth is likely to live in a climate impact hotspot by the end of this century, if greenhouse gas emissions continue unabated. Many more are put at risk in a worst-case scenario of the combined impacts ...

Jul 01, 2013
3 / 5 (30) 59 | with audio podcast

Water scarcity will create global security concerns

Water scarcity as a result of climate change will create far-reaching global security concerns, says Dr. Rajendra K. Pachauri, chair of the intergovernmental panel on climate change, a co-recipient of the 2007 Nobel Peace ...

Oct 06, 2009
2.4 / 5 (14) 4

Going out on a (redwood tree) limb

How tall can a tree grow? Does sunlight or water limit the size and photosynthetic capacity of a leaf? Could constraints on leaf growth really determine the height of a tree? These are all questions that ...

Jun 28, 2010
5 / 5 (6) 0

Tree die-off triggered by hotter temperatures

A team of scientists, led by researchers at Carnegie's Department of Global Ecology, has determined that the recent widespread die-off of Colorado trembling aspen trees is a direct result of decreased precipitation exacerbated ...

Feb 11, 2013
5 / 5 (5) 8 | with audio podcast

Big uncertainties in the global water budget

No life without water. Catastrophes like droughts or strong rains reflect our dependence on the water cycle and climate system. Hence, it is important to understand details of the water cycle among the atmosphere, ...

Jun 13, 2012
4.8 / 5 (5) 0

Lord of the tree rings

Trees are outstanding historians. In fact, scientists dating back to Leonardo da Vinci recognized the value of trees. While others had figured out that you could determine the age of a tree by counting its ...

Apr 04, 2011
4.2 / 5 (5) 0