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2005 study published in the journal Nature examined the duration and maximum wind speeds of each tropical cyclone that formed over the last 30 years and found that their destructive power has increased around 70 percent in both the Atlantic and Pacific Oceans. Another 2005 study, published in the journal Science, revealed that the percentage of hurricanes classified as Category 4 or 5 (the two strongest categories on the Saffir-Simpson scale) has increased over the same period.
As pointed out by Sterling Burnett H., (1997), the majority of world scientists disagree with the notion that global climate change is of anthropogenic nature. This is also evidenced by the analysis of a scientists and public opinion survey, provided in the following article (www.ncpa.org... and www.ncpa.org...).
Thus, statistical study of the tsunami dynamics from ancient times to the present based on two independent databases enables us to conclude that there has been a substantial increase in the number of tsunamis in the last two decades. This tendency persists today as well.
general flood number trend points to a steady increase in the statistical values. The number of flood-related deaths depends directly on the scale of flooding.
The USGS estimates that several million earthquakes occur in the world each year. Many go undetected because they hit remote areas or have very small magnitudes. The NEIC now locates about 50 earthquakes each day, or about 20,000 a year. As more and more seismographs are installed in the world, more earthquakes can be and have been located. However, the number of large earthquakes (magnitude 6.0 and greater) has stayed relatively constant.
: Let us examine the mechanism of causality between volcanic activity and Earth’s temperature changes. A higher number of volcanic eruptions leads to an increased emission into the atmosphere of volcanic gases contributing to the enhanced greenhouse effect and ultimately results in a higher atmospheric temperature.
Originally posted by speculativeoptimist
reply to post by SonoftheSun
Nice layout SonoftheSun, and yes it appears everything is increasing in occurrence and intensity. I know the Nina family(** is at play this year, but still... It seems like each month brings more natural disaster.
www.science20.com...
Kind of stands out no?
spec
edit on 24-6-2011 by speculativeoptimist because: addition
Originally posted by SonoftheSun
[color=gold]EARTHQUAKES
[atsimg]http://files.abovetopsecret.com/images/member/87c2411fbe05.jpg[/atsimg]
No graphs for this one. As hard as I looked I could not find. But I found numbers...let your fingers do the math...
The USGS estimates that several million earthquakes occur in the world each year. Many go undetected because they hit remote areas or have very small magnitudes. The NEIC now locates about 50 earthquakes each day, or about 20,000 a year. As more and more seismographs are installed in the world, more earthquakes can be and have been located. However, the number of large earthquakes (magnitude 6.0 and greater) has stayed relatively constant.
However, the number of large earthquakes (magnitude 6.0 and greater) has stayed relatively constant.
How about magnitude 7.0 and greater?? How about magnitude 5.0 and greater?? But pointing out the 6.0 had me add the sarcasm in the title: Nothing to see here...move along...
Just like keeping a plate spinning on a stick, the key is to have the plate spinning fast, as if it slows down it crashes to the floor. In a similar way, as the Earth's rotation slows down, our whole planet may start to slowly wobble and this will have a devastating effect on our seasons.
In comparison, following last year's magnitude 8.8 earthquake in Chile, Gross estimated the Chile quake should have shortened the length of day by about 1.26 microseconds and shifted Earth's figure axis by about 8 centimeters (3 inches). A similar calculation performed after the 2004 magnitude 9.1 Sumatran earthquake revealed it should have shortened the length of day by 6.8 microseconds and shifted Earth's figure axis by about 7 centimeters, or 2.76 inches.
How an individual earthquake affects Earth's rotation depends on its size (magnitude), location and the details of how the fault slipped. Gross said that, in theory, anything that redistributes Earth's mass will change Earth's rotation.
We shall consider the basic natural factors which may have a significant impact on global climate change:
1.Drift of Earth’s geographic pole
2.Drift of Earth’s geomagnetic pole and fluctuations of magnetospheric parameters
3.Change of the angular velocity of Earth’s rotation
4.Change of Earth’s endogenous activity
5.Solar activity