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Science Chem
Carbon footprint
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issy thomas
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Cards (18)
What is the main topic of today's video?
The video discusses
carbon footprints.
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Why are carbon footprints hard to measure?
Because they involve
complex
calculations over an entire
life cycle.
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What does the term "carbon footprint" refer to?
It refers to the total amount of
carbon dioxide
and other greenhouse gases emitted over something's entire
life cycle.
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What are some examples of things that can have a
carbon footprint
?
A product like a
phone
, a service like
plane travel
, or an event like a festival.
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What is the benefit of calculating carbon footprints?
It helps us understand how environmentally
damaging
things are and identify the most
polluting
activities.
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What are some factors to consider when measuring the carbon footprint of a phone?
Raw material sourcing, manufacturing process, energy usage over its lifetime, and disposal methods.
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Why is it difficult to measure the carbon footprint of a product accurately?
Because there are many
emissions
that can be missed, such as those from
transporting
parts.
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How can we reduce carbon emissions from products?
By using renewable
energy
sources and more
efficient
manufacturing processes.
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Why is reducing waste important in the context of carbon footprints?
Because waste decomposition can release
methane
, a
potent greenhouse
gas.
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What role can governments play in reducing carbon emissions?
By introducing new laws or taxing
companies
based on their
greenhouse
gas emissions.
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What is carbon capture technology?
It captures
carbon dioxide
formed from burning
fossil fuels
before it escapes into the atmosphere.
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Where can captured carbon dioxide be stored?
Deep
underground
in cracks in rocks, such as
old oil wells.
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What is a challenge associated with renewable energy sources?
They are often
more expensive
than fossil fuels.
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Why do governments hesitate to prioritize environmental issues?
They worry that prioritizing the environment might
harm
the
economy.
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What makes international
agreements
on climate change difficult?
No country wants to agree to anything that might hurt its economy without
assurance
that others will do the same.
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What is the responsibility of individuals in addressing climate change?
Individuals need to be responsible for their own
consumption
and willing to make
lifestyle
changes.
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What are the main strategies to reduce carbon footprints?
Use renewable energy sources (wind, solar, nuclear)
Implement more efficient manufacturing processes
Reduce waste to minimize methane emissions
Government actions (laws, taxes)
Utilize carbon capture technology
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What are the challenges in reducing carbon emissions?
Renewable
energy is often more expensive than fossil fuels
Economic
dependency on fossil fuels
Concerns about
economic
impact of prioritizing the environment
Difficulty in achieving
international
agreements
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