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Clothes. Lizardmen are usually depicted strutting around in the buff, or with some kind of scanty loincloth. There is definitely a place for that. But cold lizardmen would want clothes, and thick ones. It would be even more important for them than for us mammal types. Warm clothes would let them retain the metabolic heat they make with muscles. These ...


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Many real world reptiles and amphibians slow down in colder weather, hence why they develop special ways to absorb heat from the suns rays. Some species, for instance, can hibernate under frozen rivers in mud, or straight up freeze themselves too. You can read some here, its called cryptobiosis. Because of different types of reptiles and amphibians, the ...


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There your reptiles might have evolved to survive the cold to some degree or not even have a problem with it like some amphibious animals. The temperature should impact them regardless because the reaction speed of chemical processes will go slower in the cold. That’s like when we humans have not enough sugar , or oxygen in the blood what slows us down in ...


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You could do worse than the Colorado river in the US. It starts up in the mountains near Denver. From Wikipedia Most of the basin is arid, defined by the Sonoran and Mojave deserts and the expanse of the Colorado Plateau, although significant expanses of forest are found in the Rocky Mountains; the Kaibab, Aquarius, and Markagunt plateaus in ...


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Assuming you don't want a fantasy explanation: get some "helpful" nearby gas giants. In the right configuration, the terrestrial planet can end up experiencing large-scale variations in inclination and orbital eccentricity on timescales of tens of thousands to millions of years. The paper "Effects of Extreme Obliquity Variations on the Habitability of ...


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In Atlantis Found by Clive Cussler, a similar event happens, although the planet's tilt does not change. An asteroid hits Hudson Bay in Canada and brings about a period of major geological upheaval in which Antarctica moves many thousands of miles closer to the South Pole within a few years and is covered by ice. There are also major earthquakes and tsunamis,...


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Yes, such an event is possible, whether it is survivable or not is a different question. You wouldn't even need to tilt the axis by that much, the Earth's ice ages are caused by a 25,000 year cycle of procession around its axis. If your planet had a close encounter with a large body, it would be possible for it to alter the planet's rotation. A massive ...


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You need a glacier and abscence of rains. Best way to achive this - strategicaly placed high mountains on one side of an island - they would keep glacier and cast "wind shadow" with no-rain zone on (almoust) all the island. Mamonth steppes should be on sort of mesa in our warmer climate, so some traps would help. Mamonth steppes formed between deserts and ...


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By evolution. It may possible when there are only few predators and competitors for the primary food source of mammoth and also no drastic environmental changes. Maybe there was an earlier source of climate change that makes the environmental change smother but stretched duration. Mammoth may be altered because of fitting process. So maybe you could run an ...


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Australia could build a canal and store monsoon flood waters in underground reservoirs. They really do not have to build desalination plants near their cities when tens of billions of cubic meters of water are washed out to sea. They claim the distances are too great and the costs a burden but Australia is thinly settled and most of the country is still not ...


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Some nice answers already. If you don't mind doing some math, look up effective temperature of a planet. You can design the star size, the planet's albedo and calculate the effective temperature. Earth's effective temperature isn't too far off from -20 degrees C, in fact it's -21 C. https://en.wikipedia.org/wiki/Effective_temperature#...


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If you are talking about low light problems in the sense of people not being able to see well, you should be fine. The human eye can adapt to massive changes in light level. For example, even though Pluto receives about 1/1000 of the light as does the Earth, if you were standing on Pluto at noon you could read a book by sunlight. To get a -20c ...


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The answers you've received are great! I'd like to piggy-back off of them - specifically L.Dutch's: We can add to this answer by incorporating volcanic activity. A decent supervolcano will start a nuclear winter. An overactive, planet-wide 'ring of fire' with many small volcanoes could potentially prevent a forever-cold feedback loop. I could have mentioned ...


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Yes Taiga can, and almost always do, border tundra. Between 60 and 75 degrees north/south, taiga gives way to tundra, especially if there's a cold surface current flowing by the coast. Look at Canada, for example, where the turquoise subarctic continental climate, aka taiga, borders grey tundra. Cold steppes bordering taiga is, as far as I know, without ...


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Our planet is just a few thousand years out of an ice age. To get a habitable planet covered in ice (or mostly covered in ice): Make the sun slightly dimmer (less radiated heat) Make the planet slightly further from the sun (less intercepted heat) Make the planet have slightly less green house gas (less retained heat) Be at an extreme cold point in a planet'...


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Just remove greenhouse gases from the atmosphere: CO2, H2O, CH4, for example. This would lower the amount of infrared radiation trapped by atmosphere, lowering as a consequence the temperature. Keep in mind that since the climate is a complex system with several feed-back and feed-forward, a snowball planet would reinforce its conditions: more water ...


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Copy from the real world. https://pubs.usgs.gov/pp/1768/pp1768.pdf A new map of standardized, mesoscale (tens to thousands of hectares) terrestrial ecosystems for the conterminous United States was developed by using a biophysical stratification approach. The ecosystems delineated in this top-down, deduc- tive modeling effort are described in ...


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There are several ways to achieve this, but it depends on how large, what barriers you have between your biomes and what arrangement they are If your Biomes are encapsulated environments (for instance, in domes): Connect using an airlock is the most simplest way. It keeps the environments separate, allows minimal cross-contamination of species and seeds, ...


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Taiga cannot border steppe (at least wide forest have to be in between, or, like in Siberia - some low forested mountain range), but tundra can (It is actualy a "cold steppe" - it would be smooth translation from cold steppe to temperate one).


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People seem intrigued by your desalination method. It is just reverse osmosis powered by a pressure gradient like it always is. Here is my old scheme to irrigate Death Valley using such a method which uses the below sea level altitude of Death Valley to provide the pressure gradient. http://www.halfbakery.com/idea/Lake_20Death_20Valley#1033923600 I would ...


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A good choice is a Mediterranean climate. A Mediterranean climate or dry summer climate is characterized by dry summers and mild, wet winters. The climate receives its name from the Mediterranean Basin, where this climate type is most common. Mediterranean climate zones are typically located along the western sides of continents, between roughly ...


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The Canary Islands, the Insulae Fortunatae (Happy / Lucky Islands) of the ancients, are famous for their "eternal spring" climate -- average 24°C (75°F), winter 20°C (70°F), summer 26°C (80°F). And they are real. Las Palmas (on Gran Canaria island) is a major tourist destination.


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Not only can it be done, but you're basically describing Vancouver Island. Vancouver Island has extremely mild winters and warm (but not hot) summers. Most conveniently for the purposes of your story, you don't even have to add a new island to the Earth to make your story work. It's been often speculated (although not proven) that explorers from Korea and ...


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The ocean itself tends to moderate climate -- Vancouver, BC, gets much less severe winters than Toronto, despite being somewhat further from the equator. Further, the temperature of the water has a strong effect -- Sheffield (England) would have a climate like Yellowknife if not for the tail end of the Gulf Stream warming the winters. So, that's what you ...


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