Carbon neutral
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Submitted by :Anjan jyoti Bharali (ENE13004)Arnab jyoti Konwar (ENE13022)Babu Bikash Gogoi (ENE13011)Dudul Das (ENE13002)Shantanu Deka (ENE13023)Swarangsat basumatari (ENE13019)
CO2 CO2=
Carbon Cycle
Nature’s sources of CO2 are self regulating - which is released will be used again Plants take in and store CO2 from the atmosphere through photosynthesis Below ground microbes decompose organic matter and release organic carbon
back into the atmosphere
Anthropogenic carbon is not part of natures cycle (is in excess)
www.bom.gov.au/.../ change/gallery/9.shtml
Carbon Pools in The Major Reservoirs on Earth
Atmosphere
Terrestrial biosphere
Earth's
interior
Sediments
Oceans
Carbon Exchange Pathway
Role of Carbon in the Environment
• Carbon based molecules are essentially there in the biosphere
• Carbon (C) along with Oxygen (O2) constitute Carbon dioxide (CO2)
• 0.03 % of the natural atmosphere is CO2
• Plants use this CO2 to perform photosynthesis
• CO2 causes Green House Effect, which keeps the atmospheric temperature at 60°F
Then, how Carbon is a THREAT ?Emission from anthropogenic sources amplify the GHG
concentration in the atmosphere and hence the Greenhouse Effect causing Global Warming
Where Humanity’s CO2 comes from ?
Where Humanity’s CO2 goes?
World Carbon Emission
GHG Concentration in the Atmosphere
Global Atmospheric Temperature Variation
Some Upcoming Effects
What is Plan ‘A’ th
en…?
What is Carbon Neutrality?
Net ZERO Carbon emission
Wikipedia : Carbon Neutral, or having a net zero carbon footprint, refers to achieving net zero carbon emissions by balancing a measured amount of carbon released with an equivalent amount sequestered or offset, or buying enough carbon credits to make up the difference.
Carbon Footprint"A measure of the total amount of CO2 and CH4 emissions of a defined population, system or activity, considering all relevant sources, sinks and storage within the spatial and temporal boundary of the population, system or activity of interest. Calculated as carbon dioxide equivalent (CO2e) using the relevant 100 year global warming potential (GWP100)”
- journal Carbon Management by Wright, Kemp, and Williams
Carbon Sequestration "The process of removing carbon from the atmosphere and
depositing it in a reservoir“-"Glossary of climate change acronyms“, UNFCCC
This may also be referred to as CO2 removal, which is a form of geo-engineering.
CO2 sequestration refers to large-scale, permanent artificial capture and sequestration of industrially produced CO2 using subsurface saline aquifers, reservoirs, ocean water, aging oil fields or other carbon sinks.
Carbon Offset
Collins English Dictionary : A compensatory measure made by an individual or company for carbon emissions, usually through sponsoring activities or projects which increase carbon dioxide absorption, such as tree planting
Wikipedia : A carbon offset is a reduction in emissions of carbon dioxide or greenhouse gases made in order to compensate for or to offset an emission made elsewhere
Carbon Credit
A carbon credit is a generic term for any tradable certificate or permit representing the right to emit 1 tonne of CO2 or the mass of another greenhouse gas with a carbon dioxide equivalent (CO2e) equivalent to 1 tonne of CO2
a component of national and international attempts to mitigate the growth in concentrations of GHGs
1 carbon credit is equal to 1 metric tonne of CO2, or in some markets, CO2e gases
How to achieve Carbon Neutrality?
Reduce the Carbon Footprint till Zero net emission is achieved
If every individual does that, Global Carbon Neutrality will be achieved
Steps to reduce Carbon Footprint
Measure the total Carbon Footprint
Setting the Target
Manage or reduce direct emissions
Offset the balance of what can’t be reduced
Key sectors to be considered
Energy
Transport
Industry
Waste Management
Agriculture
Reduction & Offset approaches
Efficient energy uses; better technology
Shifting towards Renewable energy sources
Introduction of Carbon-Capture technologies in large and small industries
Afforestation / reforestation International, national, local
level government policiesVoluntary initiative by the
common mass
Approach from the grass-root level
At Individual LevelTurn off lights, television, computer etc. when not in use.
Use energy efficient appliances.
Fill the kettle with only as much water as you need.
Do your weekly shopping in a single trip.
Plant trees.
At the Office
No more plastic disposable cups! Let everyone bring in a mug or a glass from their home, and wash it in the restroom.
Power down when you leave, from lights to computers, everything should be off when you leave the office.
Transportation
Use the bus or a train rather than your car.
For short journeys either walk or cycle.
Try to reduce the number of flights you take.
Next time you replace your car - check out diesel engines. With one of these you can even make your own Biodiesel fuel.
Do NOT…
Be
unaware
Ignore
Miss-use
Do…
ActBe awake
Arise
And become…