By Frank Martin
TTC Service. – The Dorian hurricane has reinforced theories with its slow and intense step on the Bahamas about the relationship between climate change and the strengthening of these storms.
As is known, there are criteria for and against the actual existence of the link.
However, the catastrophic Dorian passage for the islands seems to break the balance of the balance in favor of those who “believe” in global warming and the need to face it now.
For many scientists, climate change is already sitting in the guilty chair.
Although the statistics are not enough to prove this phenomenon, there are more and more eloquent examples.
One of them is that the increase in sea level for several decades reinforces the storm surge and causes worse floods, more abundant due to the severe rains, and sea entrances that are repeated periodically.
Some scientists do not discuss the existence of the change but ask for more deeply studies about the influence on the dreaded cyclones of the climate change.
A new theory made public by a NASA scientist l just last week after studying hurricanes in the Atlantic for 70 years is that a consequence of climate changes may be that cyclones are decreasing their translational movement or even remain static when they pass over land.
This has just happened in the Bahamas.
Dorian was for hours a category 5 almost motionless, on the islands of Great Abaco and Grand Bahama.
Statistics prove that the Dorian may have broken records by passing over Bahamas for its slow movement.
It has also been the fourth storm of its 5th category dimension to be formed in the area in the last four years.
Other Dorian data are more eloquent.
According to details collected by the meteorological services of the area, the cyclone had rapid intensification.
In only nine hours, its maximum winds averaged 240 km per hour at 290.
When the storm hit the ground, its sustained winds of 298 km / h had matched the strongest ever observed in the Atlantic.
This led to an atmospheric scientist at the Woods Hole Research Center in the United States affirming that the link between rapid intensification and climate change is strong.
He bases his theory that heat in the ocean is the main source of fuel for a hurricane, and the world’s oceans have absorbed more than 90 percent of the warming over the past 50 years.