Questions tagged [environmental-protection]

Questions that concern the health and safety of people, the environment, and ecosystems. Topics can include natural resource and energy efficiency, environmental protection and/or remediation, and environmental best practices.

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2
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3answers
61 views

Why is reverse osmosis desalination the dominant method used and not heat-based methods? Also why is brine being dumped back into the ocean? [closed]

So I was recently watching this video regarding desalination efforts around the world and the viability of desalination as a means to provide humans with freshwater. I had a few questions: 1 - They ...
3
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1answer
40 views

Where does all the earth from surface mining go?

Surface mining digs up a lot of earth and rock. After the desired ore is separated, where do the earth and rock mined go?
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1answer
38 views

What is the total mass of organic carbon on Earth?

What is the estimated total mass of organic carbon plus elemental carbon (defined here as all carbon in any chemical form, minus carbon dioxide, inorganic carbonates, and other fully oxidized carbon ...
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1answer
57 views

What is the Carbon Footprint of not changing car oil?

I am on my second vehicle that I have stopped changing my oil after the car has been broke in or around 90k. The first car I made it 400k miles before the rear end went out. The second car I'm at 130k ...
3
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1answer
70 views

Quickly breeding oysters to combat oceanic pollution?

I've been doing some wikipedia binging and it's come to my realization that it may be in the Earth's best interest to raise the world oyster population as quickly as possible. The basis for this is ...
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0answers
40 views

Can CO2 / greenhouse gas levels override the effects of milankovich cycles?

I understand that we are, in all likelihood, towards the end of an interglacial period (the holocene). What I'd like to know is, what has a stronger effect on global temperatures - the low point of ...
2
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0answers
14 views

Sequestration of NO and NO2 Gasses into Soil

The university I'm a student at has been looking into Anaerobic digestion to reduce the environmental impact of the large amount of post-consumer food waste generated on campus. While this project has ...
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1answer
80 views

What is cluster situation with respect to sand mining?

Guideline on handling cluster issues : The original Environmental Impact Assessment ( EIA ) notification does not provide for the procedure to handle cluster situation, which has been proposed in ...
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1answer
34 views

What are secondary resources? [closed]

The Indian Resource Panel shall prepare a strategic roadmap for utilisation of secondary resources for meeting the developmental needs. India is the first country to constitute a National Resource ...
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0answers
31 views

Environmenal flow in the context of global gridded hydrological analyses

Environmental flow (EF) is a widely used concept in river basin management and river ecology. There are more than 200 methods to estimate the flow that should be left to the rivers to ensure a ...
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0answers
30 views

How to create Indonesian environmental conditions in India?

Need to create and maintain Biofloc for fish farming in India, it's really successful in Indonesia and I believe it's due to environmental conditions. Can we replicate the same in India?
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2answers
89 views

Will a country that cares for its environment be affected by climate change due to other countries' activities?

Let's say my country is very environment conscious, has lots of trees and animals, protects the forest, uses clean/green energy, and has all kinds of environment friendly policies you can imagine. ...
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0answers
26 views

Finding the emission factor for vehicular energy generation

I hope this is the right venue for my question. I'm trying to find the conversion factor between vehicular CO2 emissions (in units of mass, e.g. in metric tons) and the energy generated (in kWh). If ...
4
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1answer
231 views

Why don't we feed the plastics to the termites?

I may sound completely stupid but this idea hit me when I saw termites ate a plastic bag packed with papers today in my house. What are the challenges we're likely to face if we decide to do this?
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1answer
39 views

Was this reef protected?

I came across this satellite animation the other day. It shows a reef being entirely destroyed to build an industrial complex (airport, harbor, various facilities...). The animated GIF is showcased on ...
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0answers
56 views

What isn't recyclable or compostable? [closed]

This might fit better on another SX site, but thought I'd ask the science majors first. My community has single-bin recycling. Most consumer-level metal, plastic, and paper can go in there to be ...
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2answers
110 views

What does 5,000,000 tonnes of CO2 look like?

Reading a news article Probe after Gorgon releases millions of tonnes of greenhouse gas, I am confused. CO2 is a gas, right? Gases are not very dense, right? So what does 5MT of the stuff look like?...
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0answers
175 views

How to use Maximum Sustainable Yield concept with given a given population, growth rate and carrying capacity? [closed]

For my class, I was given a hypothetical situation that uses the concept of Maximum Sustainable Yield to see how much fish I should harvest. I am given an initial population, a growth rate, and a ...
3
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1answer
64 views

The influence of special emissions (possibly coal mining activity) on particulate matters

Based on multiple site sampling of airborne $PM_{2.5}$ and $PM_{10}$ , the elemental concentrations of the trace elements were analyzed. I have found out in the site near surface coal mining zone ...
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3answers
489 views

Do solar panels reduce the amount of suns rays reflected back into the atmosphere ? Therefore reducing global warming

The way I understand the basics of global warming is we are putting to much Co2 into the atmosphere which increases the size / density of atmosphere shell, sun rays enter the atmosphere then there is ...
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1answer
78 views

Roughly how much Co2 is generated per kWh of electricity generated [closed]

I’m interested to know how much Co2 is generated by a coal fired power station to produce 1kWh of electricity for electrical grid
2
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1answer
222 views

How much does the productivity of modern agriculture depend on Glyphosate?

Glyphosate is the most important herbicide in agriculture by quantity. A committee of the European Union just recently voted against a ban of the substance, after much debate around possible negative ...
3
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1answer
90 views

What control the atmospheric lifetime of different metals in aerosols?

Background I'm analysing the metallic elements in $PM_{2.5}$ to identify their possible anthropogenic sources for the study area. A total of 19 metallic elements were investigated including dust-...
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0answers
370 views

How to create a species accumulation curve by hand?

In my Environmental Science class, we were given this data with the sample # and abundance given. I would have to solve for relative abundance, which is finished below: $$ \begin{array}{c|lcr} Taxa &...
7
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2answers
1k views

How old is Earth's groundwater?

In my house, we drink the groundwater that we get from our well. It is 40 meters deep. The question is, how old is the water that we drink today? Is it from the rain 100 years ago? Another issue is, ...
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0answers
74 views

How to calculate the Ecological footprint [closed]

I'm looking for a algorithm or a formula to calculate the ecological footprint of one person who is using any kind of vehicle (car, public transit...).
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2answers
200 views

Calculate flow rate of wetland for gray water treatment

I'm currently attempting to design a water recycling solution for a carwash in a tropical country that currently uses up to 30m$^3$ (8,000 gallons US) of water in 12 hours. Based on my research in ...
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1answer
114 views

Why don't toilets use saltwater? [closed]

My question is in the header. It would seem to be a major environmental benefit if toilets used saltwater in stead of drinkable fresh water, right?
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0answers
87 views

vehicular pollution [closed]

Is there any way to convert the vehicular emissions from cars during journey to oxygen or safer gases to eliminate/decrease vehicular pollution? My question is keeping in mind most populated and ...
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2answers
2k views

What is the difference between climate change and global warming?

1. Question: In the article, Global Warming vs. Climate Change is an example of the confusion regarding these terms. What are the "official" definitions of "Climate Change" and "Global Warming"? ...
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1answer
415 views

How many BTU per cubic meter does typical paper waste yield when burned in a modern domestic fireplace

I am brewing on an idea where instead of cursing and throwing all our physical junk mail in the paper recycling bin, we process it into pellets to be burned in our fireplace as free fuel. Before I ...
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1answer
82 views

Does the EPA have a list of the nation's major environmental issues?

I went to their site and read each of the topics in the "Learn the Issues" tab but, is there a list that the EPA deems to be the most important issues that need to be dealt with?
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0answers
37 views

Biodegradation time for biodegradable shopping bags? [closed]

How long does it take for the plastic/polythene shopping bags marked biodegradable to biodegrade?
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0answers
426 views

Monitoring air pollution with Landsat satellite data

I'm trying to build an air pollution model. So far I have built one for point sources. Now I'm looking at monitoring air pollution with satellite images, based on the idea that every basic pollutant ...
6
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1answer
501 views

Removing agricultural plastic film waste after 10+ years degradation [closed]

I am at a farm where previous tenants left a non-biodegradable plastic film roughly 10-15 years ago. It is inconsistently spread over a few acres and was not discovered until we attempted plowing the ...
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1answer
483 views

Regarding car exhaust and its possible carcinogenic effects [closed]

Can some of the gaseous chemicals in many of the car exhaust by-products of the combustion engine be carcinogenic or cancer-causing?. Could car exhaust behave in a ways that are similar to 'second' ...
8
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2answers
971 views

Is pure “heat” harmful to the environment?

Is heat, dissipated from a hot conductor to the surrounding air harmful to the environment? If it were large-scale would it have any negative eco-effect? Is a source of heat, considered harmful to ...
6
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2answers
386 views

Mud bricks with shale

I have recently bought a medium sized plot of wood/scrub land. Half of this plot was once used to dump shale from coal mines, which means I have a lot of shale. I have been wondering/looking for ...
6
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1answer
79 views

Regeneration rate of nature after environmental catastrophes

It sounds logical, but I wonder if the regeneration rate of nature (natural absorption of $\ce{CO_2}$) is decreased after an environmental catastrophe (resource stock depletion, etc.)? Or are most ...
9
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1answer
119 views

Traits of invaded ecosystems? Are my compost worms a threat to New York?

I was shocked to learn that there were few native worms in the glaciated portion of North America. I use worms indoors to compost paper and kitchen scraps. I don't think there is much chance of ...
8
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1answer
737 views

About the effectiveness of sand-bags

Are there any recognized studies on the effectiveness of sand-bags in protecting property in some disaster or flood? Many times on the major news they talk about how sand-bags are used in a flood , ...
4
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0answers
78 views

How do hybrid cars reduce carbon emissions (wouldn't they just transfer fuel emissions to electricity consumption?) [closed]

How do hybrid cars reduce carbon emissions (wouldn't they just transfer fuel emissions to electricity consumption?) Doing an accounting project on upgrading fuel supplied cars to hybrids and we're ...
26
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4answers
4k views

Could the extraction of energy by wind turbines be harmful to the environment?

Wind turbines work by converting some of the energy from wind to electrical energy. Is it possible to have too many turbines, leading to them removing too much energy from the wind? I'm not an ...