Carbon Flashcards
how is methane worse than CO2(CH4)
- remains in atmosphere for 9-15 years and over 20x more heat trapped than CO2
What is the carbon equivalency of N20 (nitrous oxide)
greater than 280 x CO2e
What is a sink vs a source of carbon
Sink: absorbs more carbon that it produces (forest)
Source: generates more CO2 than it absorbs
What can forest sector do to mitigate climate change?
sustainable forest management strategy based on sustained yield will generate the largest sustained mitigation.
what are some mitigation options
- extending carbon retention in harvested wood products
- product substitution where wood is used as a pose to metal
- using waste wood for bio-energy
why is wood a good substitute product?
- carbon stored for many decades
- wood waste can displace other energy forms
- renewable wood products have lowest carbon cost
How can forests be managed to mitigate more carbon
Reforestation (density, species, reduced regen delay) Enhanced growth (fertilization, genetics, brush control) Forest health management (mortality recovery, rapid salvage, commercial thinning)
how can direct and indirect emissions be reduced in forest sector
fuel switching (biomass) divert used forest products from landfills
how can sequestration potential be increased?
enhance carbon storage
minimize emissions from end of life disposal
how can avoided emission be increased?
maximize recycling of paper and wood products
credit the carbon based implications of using wood based materials.
Is canadas forest a sink or a source of carbon
normally a sink unless it is a bad fire year or a bad pest year.