But talking about global warming does not have to be doom and gloom -- and it's not about choosing between the economy and the environment.
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But now, gloom and doom seems to be prevailing, and some are already talking of the next recession as if it was a foregone conclusion.
Yet the scene contrasts sharply with the doom that seemed to be infecting the city's video games industry almost exactly a year ago.
There seems to be a bit of doom and gloom in the media about our prospects after Saturday's win over the Cheetahs, but people forget we didn't lose the game.
Of course the doom-sayers are unlikely to be swayed by this argument because they never are.
But American sponsorship would rouse the nationalism of many Cubans and might doom any political force seen to be accepting it.
Any demand for more evidence comes to be seen as dangerous, a waste of time while the clock counts down to possible doom.
Will Mr Kiriyenko's austerity plan, backed up with kind words but no new money from the West, be enough to ward off the demons of economic doom?
For incumbents this ought to be reason for paranoia, but it need not spell doom.
The alarmists are bemoaning these results and saying they need to be more forceful and creative in delivering their message of doom and gloom.
The games are just getting more and more intense - Doom 3 is just incredible - it's going to be very intense for the computer hardware to run it.
Let me be the first to say that the end result didn't bring doom and gloom to the England camp, and we shared endless funny moments together as a squad.
Stories of impending doom will attract more attention than articles suggesting that we might be getting ready to pull out of the slump.
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Although some may view this with a feeling of impending doom, much of the recent decline in the equity market may be attributed to some investors being disappointed with the outcome of the election rather than from any perceived impact from the fiscal cliff.
Today is Earth Day, and it is very likely that the fact that abundant fossil fuels like oil, natural gas and coal, are natural resources, and gifts to humanity from Mother Earth herself will be lost amid all the frightful doom and gloom predictions that will be launched by environmental activists and repeated by various media outlets.
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Who, for example, would be crazy enough to launch yet another young men's magazine -- and further doom his chances by focusing on ideas instead of careers and entertainment and sex?
Nonetheless, NHK is to be credited for running this series, and not just reporting the gloom and doom, but also some possible solutions and new thinking.
He said that he was positive that the obstacles to the devolution of policing and justice would be overcome and accused the SDLP being "doom and gloom merchants".
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