USA Today

The quiet Atlantic hurricane season could be the norm for years to come
USA Today

Quiet Atlantic hurricane seasons such as this year may become more commonplace, a new study says.

The study in the British journal Nature Geoscience said the Atlantic could be ending a 20-year stretch of unusually active hurricane seasons that began in 1995. This included 2004 and 2005, when Katrina battered the Gulf Coast.

Klotzbach, lead author of the study that came out Monday, said a natural cycle may be responsible for patterns of active or quiet hurricane seasons, and the Atlantic is now entering an off cycle. The cycles often last 25-35 years, he said, and go back and forth between salty, warm ocean water and less salty, cooler ocean water.

Warmer, saltier water helps spur hurricanes, while chillier, less salty water brings fewer and weaker storms, Klotzbach said. Weather scientists call it the thermohaline circulation (« thermo » means temperature and « haline » means salty).

Klotzbach said the U.S. could be entering a new, quieter period, similar to the one that lasted from 1970 to 1994. But he said it is too soon to know for certain that one has begun.

Bref, c’est tout le contraire de ce que la bande à Al Gore à dit (et qui leur a valu un prix Nobel). On nous disait pourtant que le débat était clos et que la science était définitive…