AskScience AMA Series: We are climate scientists here to talk about the important individual choices you can make to help mitigate climate change. Ask us anything! |
- AskScience AMA Series: We are climate scientists here to talk about the important individual choices you can make to help mitigate climate change. Ask us anything!
- Are neonicotinoids 'bee killing' pesticides?
- Is there a Navier-Stokes equation for Angular Momentum?
- Why does Pauli's Exclusion Principle exist?
- In QFT, can I have fields for charge, color, spin, etc... and deduce all particle fields?
- In Conway's Game of life, is there a seed that doesn't end in a periodically repeating cycle of states?
- Does the weight increase on a swimming pool structure when the quantity of swimmers increases?
- What effect does a spinning object have on space time, if any?
- Is it possible to identify the food someone ate through their stool?
- Does the phone company change sound frequencies or just use audio filters to get down to 300Hz-3.4kHz?
- Does the event horizon of a black hole begin at an arbitrary radius from the singularity? Or does it start at a radius of 0 and get bigger as the black hole begins to consume matter?
- Why do fMRIs have to be specifically labeled as such, rather than just calling all of them MRIs?
- How is my daily life affected by quantum mechanics? Is it?
- Why is it that we can't calculate a zero of a function which degree is larger than 5?
- what technologies and inventions has made modern birth-giving deriving from pregnancy as safe & good as it is today?
- Why aren't we using hydrogen instead of fossil fuels?
- Could you make Helium-3 with Uranium-235 fission?
- Are there any freshwater animals that can use echolocation/produce "clicks" in the way that cetaceans can?
- Is our DNA a 50/50 split of our parents?
- If the Newton Laws were never used again, can Physics do the same calculations using other theories, like relativity, for example?
- Is it possible for a moon to have things orbiting it?
- What's the point of using liquid methane instead of liquid hydrogen in rocket boosters?
- We toss and turn in our sleep. Why don't we fall out of bed (more often)?
| Posted: 09 Nov 2017 04:00 AM PST Hi! We are Seth Wynes and Kimberly Nicholas, authors of a recent scientific study that found the four most important choices individuals in industrialized countries can make for the climate are not being talked about by governments and science textbooks. We are joined by Kate Baggaley, a science journalist who wrote about in this story Individual decisions have a huge influence on the amount of greenhouse gas released into the atmosphere, and thus the pace of climate change. Our research of global sustainability in Canada and Sweden, compares how effective 31 lifestyle choices are at reducing emission of carbon dioxide, methane, and other greenhouse gases. The decisions include everything from recycling and dry-hanging clothes, to changing to a plant-based diet and having one fewer child. The findings show that many of the most commonly adopted strategies are far less effective than the ones we don't ordinarily hear about. Namely, having one fewer child, which would result in an average of 58.6 metric tons of CO2-equivalent (tCO2e) emission reductions for developed countries per year. The next most effective items on the list are living car-free (2.4 tCO2e per year), avoiding air travel (1.6 tCO2e per year) and eating a plant-based diet (0.8 tCO2e per year). Commonly mentioned actions like recycling are much less effective (0.2 tCO2e per year). Given these findings, we say that education should focus on high-impact changes that have a greater potential to reduce emissions, rather than low-impact actions that are the current focus of high school science textbooks and government recommendations. The research is meant to guide those who want to curb their contribution to the amount of greenhouse gas in the atmosphere, rather than to instruct individuals on the personal decisions they make. Here are the published findings: http://iopscience.iop.org/article/10.1088/1748-9326/aa7541/meta And here is a write-up on the research, including comments from researcher Seth Wynes: NBC News MACH Guests: Seth Wynes, Graduate Student of Geography at the University of British Columbia in Vancouver, currently pursuing a Doctor of Philosophy Degree. He can take questions on the study motivation, design and findings as well as climate change education. Kim Nicholas, Associate Professor of Sustainability Science at the Lund University Centre for Sustainability Studies (LUCSUS) in Lund, Sweden. She can take questions on the study's sustainability and social or ethical implications. Kate Baggaley, Master's Degree in Science, Health, and Environmental Reporting from New York University and a Bachelor's Degree in Biology from Vassar College. She can take questions on media and public response to climate and environmental research. We'll be answering questions starting at 11 AM ET (16 UT). Ask us anything! [link] [comments]  |
| Are neonicotinoids 'bee killing' pesticides? Posted: 09 Nov 2017 04:15 AM PST The EU is talking about banning neonicotinoids, and everybody is raving about how this is evidence based policy. I can see there is some evidence that neonicotinoids kill bees, but it's not obviously conclusive (from my very quick scan of the literature). These kinds of questions have been asked a few years ago, but I believe significant new evidence has come out since, so I think it's worth asking again. [link] [comments]  |
| Is there a Navier-Stokes equation for Angular Momentum? Posted: 09 Nov 2017 01:05 AM PST The Navier-Stokes equations account for mass, energy and linear momentum conservation in a fluid. Is there also an equation for angular momentum conservation in a fluid? If not, why? Is this just a case of the equation existing but never being used because we don't need to? Or is there a physicall reason to why such an equation would not exist? My Google-Fu has failed my in my quest for this answer. [link] [comments]  |
| Why does Pauli's Exclusion Principle exist? Posted: 09 Nov 2017 06:37 AM PST I get that it doesn't allow fermions like electrons and quarks to get cramed together past a certain point, but why? [link] [comments]  |
| In QFT, can I have fields for charge, color, spin, etc... and deduce all particle fields? Posted: 09 Nov 2017 07:17 AM PST |
| Posted: 09 Nov 2017 05:22 AM PST Many starting combinations in Game of life end in still life that repeats after a few cycles. Is there a starting position that results in a endless chaos that perpetuates itself? I guess this question makes sense only in Game of life variant with unlimited space because on a finite number of cells there is a finite number of combinations. Also there is one obvious answer to my question - the glider gun (or similar pattern). They technically produce unique gamestate every stop but they are not 'chaotic' - I don't know how to define it precisely but they are also periodic in priciple. [link] [comments]  |
| Does the weight increase on a swimming pool structure when the quantity of swimmers increases? Posted: 08 Nov 2017 08:36 AM PST |
| What effect does a spinning object have on space time, if any? Posted: 08 Nov 2017 06:36 PM PST A stationary object curves spacetime, but does the presence of angular momentum gage any effect on that curvature? [link] [comments]  |
| Is it possible to identify the food someone ate through their stool? Posted: 08 Nov 2017 08:14 PM PST |
| Posted: 09 Nov 2017 05:58 AM PST They only transmit that narrow band - do they change some of the frequencies of sound, or just use filters to limit what gets through? Thanks. [link] [comments]  |
| Posted: 08 Nov 2017 05:04 PM PST |
| Why do fMRIs have to be specifically labeled as such, rather than just calling all of them MRIs? Posted: 08 Nov 2017 05:22 PM PST As I understand it, fMRI stands for Functional Magnetic Resonance Imaging. Is there some fundamental difference between fMRIs and MRIs or is the f just redundant? [link] [comments]  |
| How is my daily life affected by quantum mechanics? Is it? Posted: 08 Nov 2017 11:14 PM PST |
| Why is it that we can't calculate a zero of a function which degree is larger than 5? Posted: 08 Nov 2017 02:22 PM PST Today my maths professor talked about how we can't(or that there are only few instances in which we can) calculate zeros of a function which degree is larger or equal to 5. He also said something about how Horner's method is just guessing zeros of a function. And that for calculating qubic zero of a function you would need to write a whole peace of paper to come to zeros of a function. I don't know if all of this makes sense, because he just said this like a btw betwen the class and didn't really elaborate on it any further. [link] [comments]  |
| Posted: 08 Nov 2017 08:39 PM PST what technologies and inventions has made modern birth-giving deriving from pregnancy as safe & good as it is today? [link] [comments]  |
| Why aren't we using hydrogen instead of fossil fuels? Posted: 08 Nov 2017 01:04 PM PST It's my understanding that hydrogen can be produced by electrolysis using sea water. Why aren't we using solar panels, wind, whatever green energy is available to start mass producing hydrogen? It just seems to me that hydrogen is the best energy storage system out there. Clean and green. I understand there are some hurdles, such as transportation requires putting it under pressure, but we do that with natural gas anyway... doesn't seem like a deal-breaker. [link] [comments]  |
| Could you make Helium-3 with Uranium-235 fission? Posted: 08 Nov 2017 09:39 PM PST Note: I am not sure if this should go under the Physics or Chemistry flair, so feel free to correct me. Fission using Uranium produces loose neutrons which speed away fast enough to embed themselves into other Uranium atoms, starting the reaction again. In theory, could this process be used with He-2 to make He-3? Say a reactor was built and the fuel was a careful mix of U-235 and He-2. This system should create He-3 as the loose neutrons from the Uranium attach to the Helium. Or is this not possible? Would the loose neutrons simply not want to attach to the Helium atoms? [link] [comments]  |
| Posted: 08 Nov 2017 07:25 PM PST I'm investigating some audio recordings from Lake Champlain. [link] [comments]  |
| Is our DNA a 50/50 split of our parents? Posted: 08 Nov 2017 06:39 PM PST So I just saw a commercial for that 23 and Me and it was showing a thanksgiving dinner and as people were showing up, it showed what percentage of DNA they share with the grandpa who was hosting the dinner. My question is, do we share an equal fifty/fifty split of DNA with our parents? Follow up question to that, if twins are born and one is female and one is male, will the male share more DNA with the father while the female shares more with the mother? Or does gender not make a difference in percentage of DNA shared with each individual parent? Thanks in advance! [link] [comments]  |
| Posted: 08 Nov 2017 03:46 PM PST |
| Is it possible for a moon to have things orbiting it? Posted: 08 Nov 2017 06:32 PM PST |
| What's the point of using liquid methane instead of liquid hydrogen in rocket boosters? Posted: 08 Nov 2017 05:01 PM PST |
| We toss and turn in our sleep. Why don't we fall out of bed (more often)? Posted: 08 Nov 2017 05:37 AM PST |
| You are subscribed to email updates from AskScience: Got Questions? Get Answers.. To stop receiving these emails, you may unsubscribe now. | Email delivery powered by Google |
| Google Inc., 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States | |
No comments:
Post a Comment