Climate Change Working Group

nature.com

Growing population and increasing demand for higher living standards have led to the overuse of water resources.

More recently, the management of watersheds has been threatened by the impacts of climate change on the water cycle.

In the face of these challenges, water companies and agribusinesses need to seek solutions.

In this focus, Nature Climate Change presents four opinion pieces that discuss the risks and opportunities posed to private companies by water scarcity, highlight the steps some companies have already taken and, overall, the actions still required.

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ossfoundation.us

The idea that Global Warming is a natural cycle is well understood from paleo data covering the past 1 million years. Is there a difference between current climate, and the natural cycle? For the past million years the natural climate has oscillated between warm periods and ice ages. This shifting in and out of warm periods and ice ages is correlated strongly with Milankovitch cycles. In order to understand the difference between natural cycle and human-caused global warming, one needs to consider changes in radiative forcing and how this affects systems on earth such as the atmosphere, vegetation, ice and snow, ocean cycles and related effects. The current radiative forcing levels are clearly outside of the natural cycle range.

Is global warming a natural cycle? Or is global warming affected by human influence? What does the science say? Both are true. In the natural cycle, the world can warm, and cool, without any human interference. For the past million years this has occurred over and over again at approximately 100,000 year intervals. About 80-90,000 years of ice age with about 10-20,000 years of warm period, give or take some thousands of years.

Steve Allen via Getty Images

huffingtonpost.com - reuters - by Alister Doyle

OSLO, May 4 (Reuters) - Part of East Antarctica is more vulnerable than expected to a thaw that could trigger an unstoppable slide of ice into the ocean and raise world sea levels for thousands of years, a study showed on Sunday.

The Wilkes Basin in East Antarctica, stretching more than 1,000 km (600 miles) inland, has enough ice to raise sea levels by 3 to 4 metres (10-13 feet) if it were to melt as an effect of global warming, the report said.

The Wilkes is vulnerable because it is held in place by a small rim of ice, resting on bedrock below sea level by the coast of the frozen continent.

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CLICK HERE - STUDY - Ice plug prevents irreversible discharge from East Antarctic

CLICK HERE - Video - MSNBC

(Reuters/China Daily)

The climate crisis has such bad timing, confronting it not only requires a new economy but a new way of thinking.

thenation.com - by Naomi Klein - April 21, 2014

This is a story about bad timing. . .

. . . We too are suffering from a terrible case of climate-related mistiming, albeit in a cultural-historical, rather than a biological, sense. Our problem is that the climate crisis hatched in our laps at a moment in history when political and social conditions were uniquely hostile to a problem of this nature and magnitude—that moment being the tail end of the go-go ’80s, the blastoff point for the crusade to spread deregulated capitalism around the world.

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