Sentences with phrase «take decades to millennia»

Not exact matches

Like a delicate ecosystem, it takes millennia to develop but only decades to destroy.

Where CO2 takes centuries to millennia to warm the planet, methane is its cousin on steroids, working quickly over decades before decaying into less virulent gases.

Crossing the huge distance between the Sun and Alpha Centauri using current spacecraft technologies would take several millennia, though the possibility of nuclear pulse propulsion or laser light sail technology, as considered in the Breakthrough Starshot program, could reduce the journey time to a matter of decades.

Finally, is it legitimate to compare conditions during the Pliocene, which took hundreds of millennia to evolve, with present conditions which have taken just a few decades to evolve thanks to human intervention.

The optimistic view: there is still time for us to take bold, decisive actions that will shape our planet for decades (and even millennia) to come... A California resilient to increasing 21st century climate whiplash won't emerge overnight, but we now know enough about our plausible climate future to make informed decisions.»

The heat has brought on a «Great Thaw,» with landscape and ecological changes that used to take millennia now happening over decades.

Taking into account these substantial uncertainties, Mann et al. (1999) concluded that the 1990s were likely to have been the warmest decade, and 1998 the warmest year, of the past millennium for at least the Northern Hemisphere.