Emissions Definition and 65 Threads

Emissions trading (also known as cap and trade, emissions trading scheme or ETS) is a market-based approach to controlling pollution by providing economic incentives for reducing the emissions of pollutants.A central authority (usually a governmental body) allocates or sells a limited number of permits that allow a discharge of a specific quantity of a specific pollutant over a set time period. Polluters are required to hold permits in amount equal to their emissions. Polluters that want to increase their emissions must buy permits from others willing to sell them.Cap and trade (CAT) programs are a type of flexible environmental regulation that allows organizations and markets to decide how best to meet policy targets. This is in contrast to command-and-control environmental regulations (such as best available technology (BAT) standards and government subsidies).
A 2020 study found that the European Union Emissions Trading System successfully reduced CO2 emissions even though the prices for carbon were set at low prices.

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  1. T

    > Wavelength range of Hydrocarbon spectral emissions

    I was checking the NIST site with their Hydrocarbon line database search utility, and the frequencies of the lines for CH, CH2, and CH4 are on the order of 10^11 Hz approximately. That leads to wavelengths that are much larger than the visible region. Am I reading the search results...
  2. S

    Thor's Helmet: Pre-Supernova with Emissions Nebula?”

    I read that Thor's helmet (NGC 2359) is in a pre-supernova stage, but there is an emissions nebula around it. How this possible if the star is hasn't gone supernova?
  3. E

    Type of microphone for capturing acoustic emissions

    I am currently trying to incorporate the sensing of tool wear as part of my research, which is an investigation into an experimental manufacturing process that is probably most similar to milling. I have already been making use of force data, but would like to utilize acoustic data as well...
  4. A

    Is a NERVA Rocket Safe to Use in an Atmosphere?

    After they tested the NERVA prototypes back in the 60's, how much radiation actually did come out of the tailpipe?
  5. L

    Absorbtion and emissions - Carbon dioxide

    I hear many who believe that AGW is caused primarily by CO2 emissions in the atmosphere. I also hear from others that water vapor covers the same wave length in absorbtion. With more than 90% of the greenhouse gases being water vapor, what is the basis for the case concerning the influence of CO2.
  6. M

    Radioactive Emissions Basics - Check Answers & Clear Signs

    I've just been working on some of the basics of radioactive emissions. I checked my answers in the back of the book and was so supried at what I found. I just want to clear some of these signs. charges and and relative mass. Gamma ^1_1\gamma Neutron^1_1n I thought that gamma emission had no...
  7. N

    Photon emissions from hydrogen

    [SOLVED] Photon emissions from hydrogen Homework Statement How many different photon emissions can hydrogen atom make going down from excited state 5 to ground level ? Homework Equations Thats what I'm lookin for. The Attempt at a Solution Simply by counting I got 10 different...
  8. N

    Photon emissions from hydrogen

    [SOLVED] Photon emissions from hydrogen Homework Statement How many different photon emissions can hydrogen atom make going down from excited state 5 to ground level ? Homework Equations Thats what I'm lookin for. The Attempt at a Solution Simply by counting I got 10 different...
  9. V

    Nuclear Power Plant: 1GW/Year CO2 Emissions

    I think this might be an easy one but I am stucked right now and would really appreciate some help. How much mas is produced under a year by a nuclear power plant that gives 1,0 GW. Edit: ok seems like i made the newbie mistake to post this in the wrong forum, please forgive me moderator...
  10. jal

    WMAP tend to coincide with radio emissions from the Milky Way

    Have these papers been discused. http://arxiv.org/abs/0704.1125 High Galactic Latitude Interstellar Neutral Hydrogen Structure and Associated (WMAP) High Frequency Continuum Emission Authors: Gerrit L. Verschuur (Submitted on 9 Apr 2007 (v1), last revised 23 Jul 2007 (this version, v2))...
  11. BobG

    CO2 Emissions Impact: Greenhouse Effect & Space Debris Concerns

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  12. C

    Radiation emissions from glow-in-the-dark toys

    A while ago I bought some novelty keyrings which contained tritium powered lamps. The marketing information mentioned that the beta particles would be contained by the acrylic shell of the keyring. A not unreasonable claim given the low energy of the tritium beta emission, and lack of...
  13. turbo

    Polarization of quasar emissions

    http://xxx.lanl.gov/PS_cache/astro-ph/pdf/0507/0507274.pdf If quasars are at the cosmological distances suggested by their redshifts, can they conspire to be polarized similarly with respect to their line-of-sight angle to the Earth? If the universe is homogeneous and isotropic, these...
  14. D

    Unveiling the Mysteries of Quasars and their Energetic Emissions

    Quasars are known to be the highly luminous neclei at the centre of the galaxy at large red shifts and they emit energy trillions times more than that of sun in form of gamma rays and other radiations. May I know what are the other radiations?...What are the various ways in which celestial...
  15. I

    Sine Waves - Natural Emissions of All Matter?

    Are sine waves the waves that are theoretically deemed to be the waves [naturally] emitted by all matter? Or am I getting them confused with something else?
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