If a funnel cloud touches the ground it is generally regarded as a tornado and could lift debris and even cause some minor damage on the ground - depending on the strength of convection within the cloud.
Flooding is likely and winds could potentially cause damage to buildings and uproot some trees.
This can stop oxygen getting through, and cause damage to organs, or in some cases, strokes.
And even some of the smallest debris can cause damage to satellites and other objects in orbit.
You may do some damage to the economy, you may cause ripple effects in other industries that could conceivably cause a greater increase of emissions of carbon dioxide from other sources.
Their mechanism may even work on other diseases, such as macular degeneration, a leading cause of blindness, and even eye damage from diabetes, some researchers believe.
The Pentagon says that, in some cases, big single-target bombs can cause even more unintended damage than cluster bombs.
ECONOMIST: Landmines and cluster bombs: Nothing's perfect | The
Some animal data may also indicate it reverses the disease's cause: damage to the insulin-producing cells in the pancreas.
We've known for some time that lead is a potent neuro-toxin that can cause significant damage to a number of organs in the body, including the central nervous system, and can lead to behavioural problems in children.
Experts say the effects are only more serious if the substance is ingested, when it can cause damage to lungs and the digestive system, and could prove fatal in some cases.
If it were not for this kick, the apparatus would be behaving just like Maxwell's Demon, a hypothetical creature (conceived of in the 19th century by James Clerk Maxwell) that could cause the spontaneous separation of hot and cold particles and thus do serious damage to some of the laws of physics.
In some cases, as when drugs such as Vioxx cause heart attacks or strokes, the damage can be almost undetectable for years.
"At some point, we are going to find an asteroid big enough that it could cause damage at ground level if we let it hit, " he explained.
Some supplements can interfere with prescription drugs and too much can cause neuropathy and in severe cases, organ damage.
Some of them merely do it to observe and take photos but an uncaring minority want to cause damage or remove a souvenir.
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