A Collection of articles on climate engineering. Feel free to add or comment

earth from space

Shading Earth: Delivering solar geoengineering materials to combat global warming may be feasible and affordable

Date:August 30, 2012
Source: Institute of Physics (IOP)

A cost analysis of the technologies needed to transport materials into the stratosphere to reduce the amount of sunlight hitting Earth and therefore reduce the effects of global climate change has shown that they are both feasible and affordable. The study has shown that the basic technology currently exists and could be assembled and implemented in a number of different forms for less than USD $5 billion a year.
When l read this article, the first thing l thought of was large numbers of cane toads in plague proportions introduced in Australia to solve past mistakes
Our past history of correcting our past mistakes have been diabolical
Our desire to control the climate scares me a little

For example
‘Native to Central and South America, Cane toads were introduced to Australia from Hawaii in June 1935 by the Bureau of Sugar Experiment Stations in an attempt to control the native grey-backed cane beetle (Dermolepida albohirtum) and Frenchi beetle (Lepidiota frenchi).[6] These beetles are native to Australia and they are detrimental to sugar cane crops, which are a major source of income for Australia. Adult cane beetles eat the crop’s leaves, but the main problem is the larvae, who feed on the roots. Adult cane beetles have a heavy exoskeleton and their eggs and larva are often buried underground, making them difficult to exterminate. Furthermore, conventional methods of pest control, such as pesticide use, would eradicate harmless species of insects as well, making it an unsatisfactory method.[7]

The cane toads bred immediately in captivity, and by August 1935 more than 102 young toads were released in areas around Cairns, Gordonvale and Innisfail in northern Queensland. More toads were released around Ingham, Ayr, Mackay and Bundaberg. Releases were temporarily limited because of environmental concerns but resumed in other areas after September 1936. Since their release, toads have rapidly multiplied in population and now number over 200 million and have been known to spread diseases affecting local biodiversity.[8]

Unfortunately, the introduction of the toads has not only caused large environmental detriment, but there is also no evidence that they have had an impact on the cane beetles they were introduced to predate.

The toads have steadily expanded their range through Queensland, reaching the border with New South Wales in 1978 and the Northern Territory in 1984. The toads on the western frontier of their advance have evolved larger legs;[9] this is thought to be related to their ability to travel farther. As a consequence of their longer legs, larger bodies, and faster movement, about 10% of the leading edge cane toads have also developed arthritis.[10] It is estimated that cane toads migrate at an average of 40 kilometres (25 mi) per year currently.[11]’


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Thanks to ‘dave7’ from weatherzone forum for providing this link



  1. Moved this post here
    posted by
    REPEL Damocles swords

    August 1, 2014 @ 9:00 pm Edit

    “Extreme solar storms spark a need for innovation”. As NASA just announced, a massive solar storm similar to the one in 2012 could wipe out GPS, satellite communication, the power grid, the Internet – just about anything that would be affected by a sufficiently large direct electromagnetic blast from the sun [including nuclear plants]. One thing that could be done now is to launch a competition to attract the best ideas from the scientific community, similar to what NASA does with its Innovative Advanced Concepts program. It’s been noticed that, in the event of extreme solar activity, the Earth’s magnetosphere adjusts in response to the CMEs from the sun. Maybe that system could be exploited or augmented by man-made means to create a shield that powers up or powers down anytime NASA’s early-warning system detects unusual activity.

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