| | FAQ : HURRICANES, TYPHOONS, AND TROPICAL CYCLONES |
 | | But while observations of tropical and subtropical sea surface temperature have shown an overall increase of about 0.2 C (0.4 F) over the past ~50 years, there is only weak evidence of a systematic increase in potential intensity (Bister and Emanuel, 2002; Free et al., 2004). |
 | | Because the global earth system is highly complicated, until a relationship between actual storm intensity and tropical climate change is clearly demonstrated, it would be premature to conclude that such a link exists or is significant (from the standpoints of either event or outcome risk) in the context of variability. |
 | | Additionally, even if a relationship were to be found between trends in sea surface temperature and various measures of tropical cyclone intensity, this would not necessarily mean that the storms of 2004 or their associated damages could be attributed directly or indirectly to increasing greenhouse gas emissions. |
| www.aoml.noaa.gov /hrd/tcfaq/G3.html (1847 words) |