In comparison, the films annealed at 170 °C in air showed nearly identical low-energy emission in time-delayed PL spectra, centered at 520 nm, regardless of the side-chain structures.
While no low-energy green emissions were observed in solutions, spin-cast and vacuum dried initial films exhibited low-energy emission in time-delayed PL spectra, centered at 490 nm, whose intensity varied strongly with the side-chain structure.
"But I also had this idea floating around in the back of my head that we're moving too slowly to actually stop emissions in time.
Figueres said it was still possible for the world to cut emissions in time to avoid such a fate, but that it would take urgent action.
Allen Lane; £16.99In his fourth book about the Gaia theory, James Lovelock, a British scientist, dismisses biomass fuels, wind farms, solar energy and fuel-cell innovations as technologies unlikely to mitigate greenhouse-gas emissions in time to save the planet.
#IPCC #AR5 - human influence on climate is clear and GHG emissions are now higher than ever - #climate2014 #climatechange "We have the opportunity, and the choice is in our hands," he added, referring to the need for a global climate deal to limit fossil fuel emissions in time for an international climate meeting of governmental policymakers next December in Paris.
As long as governments and companies invest now in the research and development of the technologies – and as long as breakthrough made in the west are shared with developing nations – then we will still have a chance to control our emissions in time.
Michael Oppenheimer, a geoscientist at Princeton, praised the report in an e-mail message as a "remarkably clear and direct" discussion of whether it would be possible to temporarily exceed a level like 450 p.p.m. and then reduce emissions in time to avoid catastrophic events like the collapse of a major inland ice sheet.
The 16-year-old was charged with breaking Singapore's strict hate-speech laws and will be tried as an adult.Not doing their homeworkA deadline passed for countries to submit their proposals on tackling greenhouse-gas emissions in time for a big conference in Paris in December at which a new climate treaty will be signed.
The bad news just got worse: A new study finds that reining in greenhouse gas emissions in time to avert serious changes to Earth's climate will be at best extremely difficult.
This paper proposes a technique for implementing the concept of a virtual chamber for radiation emission measurements in time domain.
