Score
Title
9439
Megathread: 2017 Hurricane Season
47
Earthquake Megathread
5027
Nutrition Facts: Why is sodium listed instead of salt?
5
If NASA's mission to Mars is successful, will Mars become American Territory?
6
How heavy is fire? If something catches on fire is it heavier or lighter?
9952
Duck fat melts at 57 degrees Fahrenheit. So on a 90 degree day, is a living duck's fat just... sloshing around?
15
How does deodorant work?
15
What gas is inside of unopened peppers? Or is it just air?
6
How much Asteroid mining/extra mass until it has an impact on earth's orbit?
1
What is a kilowatt hour, and why do electric companies charge based on this instead of kilowatts?
4
Why is drinking milk after spicy foods better than drinking water?
192
If natural fruit juices contain large amounts of sugar, why do we only seem to refine sugars from a select few plants (sugarcane, sugar beets) instead of from fruits in general?
152
What have we learned from Cassini's dive into Saturn so far?
78
Why do hospitals have heart clinics specifically for Women? Aren't all hearts the same?
279
How does computer memory work when the computer is turned off?
45
Do ape's toenails grow slower than their fingernails, like humans?
8399
What have been the implications/significance of finding the Higgs Boson particle?
1
If we want to colonise mars, why don't we colonise it first with Cyanobacteria and then plants in order to create a habitable atmosphere?
97
Can microwaves work without using water molecules to heat up food?
7
Why does the fourth power show up in the Stefan–Boltzmann law?
7
When I scratch a piece of metal, do small amounts of atoms break off from it?
5
Do lactose intolerant people absorb the same amount of calories from milk as regular people?
3
What has kept land animals from evolving to enormous sizes, i.e. the size of a mountain?
14
How do they prevent the ISS from crashing into satellites and space junk?
29
Do small songbirds - a finch, say - ever get stung by bees/ wasps? If so, is it typically fatal?
45
It's been about 5 years since the Mochizuki's ABC Conjecture proof was originally published. What's its current status?
1
How do vaccines fail?
8
Does Quinine glow even after you remove it from a black light?
7
Can we forecast the northern and/or southern lights?
240
On a planet with more than 1 sun, what would a rainbow look like?
6
What can layers and swrils in rock indicate?
5
How do insects protect their eyes from direct sunlight?
4
Why can't you count the number of things touching you in a certain spot?
216
We are carbon based life forms, however, is it possible for life to be based off another element?
124
Is there a maximum size for a raindrop?
6
In a coronary bypass surgery, why do doctors use veins instead of arteries? Is there an advantage to this?
2110
Are there any challenges for parasites living in animal blood?
14
How real is the threat of human extinction by gamma ray bursts?
3
What happens when wind / a fluid is put through a T-shaped tube, where the bottom of the T is closed off, but the two sides are open? What happens to the fluid in the closed, vertical tube?
46
Is learning another language simply additive to your mother tongue, or is the second language "separate" in your brain?
8
What is actually happening when an electric current flows through an a salt solution or a molten salt?
3
How can Burning wood (carbon) generate UV radiation?
139 mutatron It's [significant, but not the main source of global warming](https://www.skepticalscience.com/how-much-meat-contribute-to-gw.html). CO2 is now at about 405ppm, while methane is at 1.8 ppm. Even taking the highest multiplier for methane only gets you to 144 equivalent ppm. And there are many other sources for methane besides animal agriculture, including leakage from oil and natural gas wells.
48 Scouterr It isn't so much what the cows produce but the volume of fossil fuels used to produce that pound of ground beef in your supermarket. You have to think of the entire supply chain from fertilizer to grow grass and corn, to pesticides for spraying weeds in pastures, to hauling cattle from pasture to packaging, and all of the manufactured consumables along the way. They take up a massive amount of resources that could be used elsewhere, but man are they tasty.
69 ChangeStartsHere There are several issues with beef that goes beyond GHG (greenhouse gas) emissions. It is also more land intensive and water intensive. Checkout the 6th graph from the world resource institute (a highly respected data-driven sustainable policy think tank) http://www.wri.org/blog/2016/04/sustainable-diets-what-you-need-know-12-charts
6 somedave Yes a huge about of methane is produced by cattle as others have mentioned. [There is also an additional impact of deforestation as rain-forest is cut down to make way for new grazing pastures](https://rainforests.mongabay.com/0812.htm) and high water usage, as well as opportunity cost associated with land being used for pasture. Depending on how you allocate the numbers and weight different factors, dairy and beef farming is one of the major contributors to agricultural global warming, which is similar in it's contribution to ALL transport (~13%). Edit: For clarification I do mean all agriculture makes roughly the same annual contribution as transportation.
7 flyboy_za There's an interesting documentary called Cowspiracy which addresses this. The guy's numbers put methane at way more responsible for climate change than anything else, if he's right about the numbers, and also for how much water it costs and space is needed to raise livestock for food. I don't know enough to challenge what he says, but the whole thing is an eye-opener.
5 [deleted] [removed]
135 0 mutatron It's [significant, but not the main source of global warming](https://www.skepticalscience.com/how-much-meat-contribute-to-gw.html). CO2 is now at about 405ppm, while methane is at 1.8 ppm. Even taking the highest multiplier for methane only gets you to 144 equivalent ppm. And there are many other sources for methane besides animal agriculture, including leakage from oil and natural gas wells.
44 0 Scouterr It isn't so much what the cows produce but the volume of fossil fuels used to produce that pound of ground beef in your supermarket. You have to think of the entire supply chain from fertilizer to grow grass and corn, to pesticides for spraying weeds in pastures, to hauling cattle from pasture to packaging, and all of the manufactured consumables along the way. They take up a massive amount of resources that could be used elsewhere, but man are they tasty.
70 0 ChangeStartsHere There are several issues with beef that goes beyond GHG (greenhouse gas) emissions. It is also more land intensive and water intensive. Checkout the 6th graph from the world resource institute (a highly respected data-driven sustainable policy think tank) http://www.wri.org/blog/2016/04/sustainable-diets-what-you-need-know-12-charts
6 0 somedave Yes a huge about of methane is produced by cattle as others have mentioned. [There is also an additional impact of deforestation as rain-forest is cut down to make way for new grazing pastures](https://rainforests.mongabay.com/0812.htm) and high water usage, as well as opportunity cost associated with land being used for pasture. Depending on how you allocate the numbers and weight different factors, dairy and beef farming is one of the major contributors to agricultural global warming, which is similar in it's contribution to ALL transport (~13%). Edit: For clarification I do mean all agriculture makes roughly the same annual contribution as transportation.
5 0 flyboy_za There's an interesting documentary called Cowspiracy which addresses this. The guy's numbers put methane at way more responsible for climate change than anything else, if he's right about the numbers, and also for how much water it costs and space is needed to raise livestock for food. I don't know enough to challenge what he says, but the whole thing is an eye-opener.
4 0 [deleted] [removed]