Alan Detwiler
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Alan Detwiler's latest writings
A Resilient Garden For Unpredictable Climate, Grow Your Own If Climate Change Causes Food Shortages
None of the popular theories for predicting climate change make sense. Each theory has at least one fatal flaw. The folks at the Centre for Ice and Climate at the Neils Bohr Institute of the University of Copenhagen have it right: no one knows [1]. There could be further warming, or temperatures could more or less stay within... (posted by Alan Detwiler 155 days 17 hours ago.)
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None of the popular theories for predicting climate change make sense. Each theory has at least one fatal flaw. The folks at the Centre for Ice and Climate at the Neils Bohr Institute of the University of Copenhagen have it right: no one knows [1]. There could be further warming, or temperatures could more or less stay within... (posted by Alan Detwiler 155 days 17 hours ago.)
Kitchen Gardening During Drought
Temperatures worldwide have been rising. They may continue to rise. Longer and more severe droughts are forecasted. Special strategies are needed by gardeners to deal with increased water needs of garden plants. Two-feet deep topsoil will stay moist longer than lesser thicknesses. Adding topsoil can be expensive but is one of the more effective strategies. If your soil is already two-feet or more thick, breaking up the... (posted by Alan Detwiler 304 days 10 hours ago.)
Temperatures worldwide have been rising. They may continue to rise. Longer and more severe droughts are forecasted. Special strategies are needed by gardeners to deal with increased water needs of garden plants. Two-feet deep topsoil will stay moist longer than lesser thicknesses. Adding topsoil can be expensive but is one of the more effective strategies. If your soil is already two-feet or more thick, breaking up the... (posted by Alan Detwiler 304 days 10 hours ago.)
Kitchen Gardening During Global Warming
The earth is warming. It seems most scientists think humans are at least partly responsible. If the scientists are right, we should all work together to reduce how much CO2 we are putting into the atmosphere. The major sources of human generated greenhouse gases are transportation, heating homes, and industries. If you seriously want to reduce how much humans are contibuting to global warming, go for reductions... (posted by Alan Detwiler 306 days 10 hours ago.)
The earth is warming. It seems most scientists think humans are at least partly responsible. If the scientists are right, we should all work together to reduce how much CO2 we are putting into the atmosphere. The major sources of human generated greenhouse gases are transportation, heating homes, and industries. If you seriously want to reduce how much humans are contibuting to global warming, go for reductions... (posted by Alan Detwiler 306 days 10 hours ago.)
What Makes Science Fiction Good
Science fiction describes a world more wonderous and better than our more ordinary real world. It is the world and the universe as it can be imagined to be. What the author imagined is presented as real and to an extent we experience the author's vision as being real. Before us are the wonders that technology has yet to produce, marvelous devices that correct what is wrong with the real world and give us that which we want... (posted by Alan Detwiler 308 days 17 hours ago.)
Science fiction describes a world more wonderous and better than our more ordinary real world. It is the world and the universe as it can be imagined to be. What the author imagined is presented as real and to an extent we experience the author's vision as being real. Before us are the wonders that technology has yet to produce, marvelous devices that correct what is wrong with the real world and give us that which we want... (posted by Alan Detwiler 308 days 17 hours ago.)
Why We Don't Get Radio Messages From Extra Terrestrial Civilizations
Out of the billions of stars it would seem some would have planets with the same conditions that gave rise to life on earth. Considering the huge number of solar systems, it seems likely that many extra terrestrial civilizations have evolved throughout the universe. By chance many civilization would have started before earth's civilization. Those early starters would likely be more... (posted by Alan Detwiler 309 days 18 hours ago.)
Out of the billions of stars it would seem some would have planets with the same conditions that gave rise to life on earth. Considering the huge number of solar systems, it seems likely that many extra terrestrial civilizations have evolved throughout the universe. By chance many civilization would have started before earth's civilization. Those early starters would likely be more... (posted by Alan Detwiler 309 days 18 hours ago.)
Preparing For A Global Disaster
People might have to go back to living as people did a century or more ago. There are half a dozen events that could cause that to happen. Cataclysmic events have occurred before and it seems certain they will continue to repeatedly occur. Scientists say that a large asteroid impact during the next few hundred years is unlikely because large impacts happen about every 30 million years. But there is that small chance that... (posted by Alan Detwiler 312 days 10 hours ago.)
People might have to go back to living as people did a century or more ago. There are half a dozen events that could cause that to happen. Cataclysmic events have occurred before and it seems certain they will continue to repeatedly occur. Scientists say that a large asteroid impact during the next few hundred years is unlikely because large impacts happen about every 30 million years. But there is that small chance that... (posted by Alan Detwiler 312 days 10 hours ago.)
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