No more pauses in global warming

• Autores: Michael Slezak
• Localización: New scientist, ISSN 0262-4079, Nº. 2985, 2014, pág. 10
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • The slowdown in global warming since 1997 seems to be driven by unusually powerful winds over the Pacific Ocean, which are burying heat in the water. But even if that happens again, or a volcanic eruption spews cooling particles into the atmosphere, people are unlikely to see a similar hiatus, according to two independent studies. Masahiro Watanabe of the University of Tokyo in Japan and his colleagues have found that, over the past three decades, the natural ups and downs in temperature have had less influence on the planet's overall warmth. In the 1980s, natural variability accounted for almost half of the temperature changes seen. That fell to 38 per cent in the 1990s and just 27 percent in the 2000s. On the other hand, Matthew England and his colleagues at the University of New South Wales concluded that if emissions keep rising, the chance of a hiatus--a 10-year period with no significant warming--drops to virtually zero after 2030.