How the predictions for the year 2000 changed throughout the 20th century.
How the predictions for the year 2000 changed throughout the 20th century.
Not surprisingly, Arthur Clarke’s predictions were generally the best.
Tag: science
In a paper published today in Geophysical Research Letters, researchers studying an icecore drilled in the West Antarctic Ice Sheet have found strong evidence of the 16th century Little Ice Age in the southern hemisphere.
In a paper published today in Geophysical Research Letters, researchers studying an ice core drilled in the West Antarctic Ice Sheet have found strong evidence of the 16th century’s Little Ice Age in the southern hemisphere. From the abstract:
The temperature in the time period 1400–1800 C.E. was on average 0.52 ± 0.28°C colder than the last 100-year average. … This result is consistent with the idea that the [Little Ice Age] was a global event, probably caused by a change in solar and volcanic forcing, and was not simply a seesaw-type redistribution of heat between the hemispheres as would be predicted by some ocean-circulation hypotheses.
In an effort to emphasis human-caused global warming and eliminate any evidence of climate change caused by other factors, many global warming scientists have argued that the Little Ice Age was not a global event but merely a cooling in Europe. This data proves them wrong. The global climate has varied significantly in the recent past, and not because of human behavior. Other factors, such as fluctuations in the solar cycle, must be considered more seriously for scientists to obtain a better understanding of the Earth’s climate.
“The closest thing on Earth to interplanetary exploration.”
From the Dawn science team: The battered failed planet Vesta.
From the Dawn science team: The battered failed planet Vesta.
The results confirm Vesta as the source of a specific family of asteroids, but more interestingly also identify the actual impact that peeled these asteroids from Vesta’s surface.
Read the whole thing, Dawn has found a lot of interesting stuff.
“How I learned not to deny climate change.”
“How I learned not to deny climate change.”
An excellent summary of the real debates in the climate field, as well as who is actually denying reality.
A star not even as hot as Venus.
Mars Reconnaissance Orbiter has found that some dunes on Mars move and change as much as those on Earth.
Mars Reconnaissance Orbiter has found that some dunes on Mars move and change as much as those on Earth.
One astronomer has found that the habitable zone around some smaller stars is smaller than first calculated because of tidal heating.
One astronomer has found that the inner edge of the habitable zone around some dwarf stars is smaller than first calculated because tidal forces overheat planets close to the star.
Then again, this heating might expand the habitable zone in other directions. Stars might overheat when close to the star, but get a boost of needed heat when they would normally be too far away.
Dogs feel your pain
A trio of twisters captured on Mars in a single image.
A trio of twisters captured on Mars in a single image.
The Sun fizzles in April
NOAA’s Space Weather Prediction Center today posted its monthly update of the ongoing sunspot cycle of the Sun. I have posted the new graph for April below the fold.
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Scientists have found that a solar Grand Minimum 2800 years ago might have caused a period of cooling in Europe
Scientists have found that a solar Grand Minimum 2800 years ago might have caused a period of cooling in Europe.
The evidence for this link is at this moment slim, based upon a single data point from a lake in Germany. Nonetheless, it is further evidence that the Sun’s production of sunspots is more important to global climate than climate scientists had previously believed.