Scientists tend now to see geo-engineering research as a form of insurance policy against the effects of continued global warning, not as an excuse for downplaying the problem, nor for tolerating more carbon emissions in the meantime.
Professor Lipkin is one of the leading advocates of a global early warning system for contagious disease to reduce the risk of the sort of pandemic seen in Contagion.
He wants a global early-warning system for controlling the spread of missiles.
And analysts are warning that global supplies of indium could be exhausted as soon as 2017.
The late Stephen Schneider, who authored The Genesis Strategy, a 1976 book warning that global cooling risks posed a threat to humanity, later changed that view 180 degrees, serving as a lead author for important parts of three sequential IPCC reports.
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The warning was a global one as consumers and businesses around the world are delivering fewer goods.
This market, which is an early-warning system for global credit defaults, has been growing at a 50% annualized rate without the proper infrastructure to ensure against the potential risk of a nasty and disorderly shock.
And its latest warning - that global carbon dioxide emissions from energy use rose by 5% during 2010 - is casting a new layer of doubt on the ability of governments to meet the targets they've signed up to on curbing climate change.
After forty years of experience coordinating the Pacific Tsunami Warning System (PTWS), UNESCO-IOC is leading a global effort to establish ocean-based tsunami warning systems as part of an overall multi-hazard disaster reduction strategy.
The question is, how do we co-ordinate an asteroid early warning system at the global level?
Other speakers made impassioned pleas for global consensus on a way forward, warning that failure to reach agreement would mean disaster.
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Given that borders do act as barriers in significant ways, it seems that those warning about the dangers of global connectedness want to have their cake and eat it too.
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On Friday, dollar borrowing costs increased and crossed a new threshold, one warning sign of strain in the global financial system.
Nick Clegg has issued a warning about the state of the global economy and vowed to do more to boost UK growth.
That was the warning from one of the biggest figures in global banking - Josef Ackermann, chief executive of the huge Deutsche Bank.
" Instead, "the aim should surely be a global defense shield to which Britain could contribute its early warning radars as well as much-needed political and diplomatic support.
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With the most advanced tsunami warning system in the world, Japan is a global standard setter.
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Progammes include the Global Sea Level Observing System ( GLOSS), regional tsunami warning systems and the Harmful Algal Bloom Programme ( IOC-HAB).
Firstly, many economists had been warning for some time of a possible slowdown in global economic growth, albeit one introduced in a less spectacular fashion.
The European debt and banking crisis remains in limbo, with experts warning Europe must quickly rescue the situation to prevent a global recession.
Now Mundell is back, warning about the urgent need to restore stability to the global monetary system and calling on governments to reinstate hard money.
Programmes target a wide range of national, regional and global challenges such as climate change, ocean health and fisheries, disaster warning and mitigation, capacity building, and data availability and exchange.
Michael Mullen, has made several recent statements warning of the danger a nuclear-armed Iran will pose to global security - and by extension, to US national security.
Customers will now have the ability to conduct missions, 24x7, through all weather conditions, across most of the planet to help solve some of the world's critical problems such as global climate change, ocean acidification, fisheries management, hurricane prediction, tsunami warning and exploration for valuable natural resources.
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Then, so the story goes, the manmade global warming of the industrial era outstripped all natural variations and released the body as a warning to us all.
The fourth health warning is that presidents of both parties can be blown off course by shocks elsewhere in the global economy, such as the quadrupling of oil prices in 1973-74.
This has worried the International Monetary Fund into giving warning that OPEC must expand spare capacity to 3m-5m bpd to ensure the health of the global economy.
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