Carbon Flashcards

1
Q

how is methane worse than CO2(CH4)

A
  • remains in atmosphere for 9-15 years and over 20x more heat trapped than CO2
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2
Q

What is the carbon equivalency of N20 (nitrous oxide)

A

greater than 280 x CO2e

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3
Q

What is a sink vs a source of carbon

A

Sink: absorbs more carbon that it produces (forest)
Source: generates more CO2 than it absorbs

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4
Q

What can forest sector do to mitigate climate change?

A

sustainable forest management strategy based on sustained yield will generate the largest sustained mitigation.

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5
Q

what are some mitigation options

A
  • extending carbon retention in harvested wood products
  • product substitution where wood is used as a pose to metal
  • using waste wood for bio-energy
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6
Q

why is wood a good substitute product?

A
  • carbon stored for many decades
  • wood waste can displace other energy forms
  • renewable wood products have lowest carbon cost
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7
Q

How can forests be managed to mitigate more carbon

A
Reforestation (density, species, reduced regen delay)
Enhanced growth (fertilization, genetics, brush control)
Forest health management (mortality recovery, rapid salvage, commercial thinning)
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8
Q

how can direct and indirect emissions be reduced in forest sector

A
fuel switching (biomass)
divert used forest products from landfills
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9
Q

how can sequestration potential be increased?

A

enhance carbon storage

minimize emissions from end of life disposal

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10
Q

how can avoided emission be increased?

A

maximize recycling of paper and wood products

credit the carbon based implications of using wood based materials.

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11
Q

Is canadas forest a sink or a source of carbon

A

normally a sink unless it is a bad fire year or a bad pest year.

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