trees are climate change, carbon storage heroes
by amy androff
1 j.r.r. tolkien, author of the lord of the rings, once wrote, \i longed to devise a setting in which the trees might really march to war.\
2 if climate change is a battle for earths survival, then trees will be a vital army holding the line. when tolkien imagined trees marching to war, he couldnt have foreseen how relevant those words would one day be.
3 trees are a bastion against climate change.
4 they sequester carbon as theyre growing from the soil and store it when their lumber is used to build our homes.
5 to grow, a tree needs water, sunlight, minerals, and carbon dioxide. during photosynthesis, a tree converts these ingredients to sugars that feed the tree and fuel its growth. the carbon dioxide used by the tree is permanently stored in its fibers.
6 in one year, a mature live tree can absorb more than 48 pounds of carbon dioxide.
7 so, whether the tree is still growing or used to make a wood product, carbon is sequestered until the tree or wood experiences another physical event—like fire or decomposition—that releases its carbon.
8 but its hard to talk about how wood products store carbon without talking about how to assess the impact of a products carbon storage capacity versus the carbon cost of its fabrication.
9 in a 2019 journal article, \life cycle assessment of forest - based products: a review,\ forest products laboratory (fpl) researchers explain the use of an internationally accepted standard method called life cycle assessment (lca). it maps the life of a product holistically from birth to death, or cradle - to - grave, and analyzes how much environmental impact a product will have on the planet. lca compares how much carbon is stored versus how much was produced during a products manufacture.

select the correct answer.
read the excerpt from paragraph 13.
13 \with the immediate carbon emission reduction benefit from replacing fossil - based non - renewable concrete and steel with renewable mass timber products, the urgent climate change crisis can be mitigated now to help save our future.\
which main idea does hongmei gus point help to develop?
a. sustainable changes that we make now will have a positive impact on our future.
b. there needs to be more research on how to produce renewable mass timber products.
c. it is imperative that we stop using fossil - based non - renewable concrete right away.
d. concrete should no longer be made with cement because it emits greenhouse gases.

Question

trees are climate change, carbon storage heroes
by amy androff
1 j.r.r. tolkien, author of the lord of the rings, once wrote, \i longed to devise a setting in which the trees might really march to war.\
2 if climate change is a battle for earths survival, then trees will be a vital army holding the line. when tolkien imagined trees marching to war, he couldnt have foreseen how relevant those words would one day be.
3 trees are a bastion against climate change.
4 they sequester carbon as theyre growing from the soil and store it when their lumber is used to build our homes.
5 to grow, a tree needs water, sunlight, minerals, and carbon dioxide. during photosynthesis, a tree converts these ingredients to sugars that feed the tree and fuel its growth. the carbon dioxide used by the tree is permanently stored in its fibers.
6 in one year, a mature live tree can absorb more than 48 pounds of carbon dioxide.
7 so, whether the tree is still growing or used to make a wood product, carbon is sequestered until the tree or wood experiences another physical event—like fire or decomposition—that releases its carbon.
8 but its hard to talk about how wood products store carbon without talking about how to assess the impact of a products carbon storage capacity versus the carbon cost of its fabrication.
9 in a 2019 journal article, \life cycle assessment of forest - based products: a review,\ forest products laboratory (fpl) researchers explain the use of an internationally accepted standard method called life cycle assessment (lca). it maps the life of a product holistically from birth to death, or cradle - to - grave, and analyzes how much environmental impact a product will have on the planet. lca compares how much carbon is stored versus how much was produced during a products manufacture.

select the correct answer.
read the excerpt from paragraph 13.
13 \with the immediate carbon emission reduction benefit from replacing fossil - based non - renewable concrete and steel with renewable mass timber products, the urgent climate change crisis can be mitigated now to help save our future.\
which main idea does hongmei gus point help to develop?
a. sustainable changes that we make now will have a positive impact on our future.
b. there needs to be more research on how to produce renewable mass timber products.
c. it is imperative that we stop using fossil - based non - renewable concrete right away.
d. concrete should no longer be made with cement because it emits greenhouse gases.

Accepted Answer

# Brief Explanations:
To determine the correct answer, we analyze each option:
- Option A: The quote from paragraph 13 emphasizes that using renewable mass timber products (a sustainable change now) can mitigate the climate crisis and help save the future, which aligns with the idea that current sustainable changes have a positive future impact.
- Option B: The quote does not mention the need for more research on producing renewable mass timber products.
- Option C: The quote focuses on replacing fossil - based materials with renewable ones to mitigate the climate crisis, not on immediately stopping the use of fossil - based concrete.
- Option D: The quote does not discuss whether concrete should be made without cement or the emission of greenhouse gases from cement in concrete.

# Answer:
A. Sustainable changes that we make now will have a positive impact on our future.

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