Jonathan Benchmuel

PHYS 273 - Winter 2020

[Jonathan Benchmuel @JonathanBenchm1]

we can all make a slight positive impact on sustainability by simply turning off lights in a room that is not being used.
#lesson12

[Jonathan Benchmuel @JonathanBenchm1]

Effective adaptation and mitigation responses will depend on policies on a regional, national and subnational level when it comes to sustainablity.
#lesson12

[Jonathan Benchmuel @JonathanBenchm1]

CLIMATE refers to the typical patterns of weather that occur in a place over a period of years. Climate is not weather
#lesson11

[Jonathan Benchmuel @JonathanBenchm1]

Fossil fuel recovery and use are a major source of water pollution
#lesson10

[Jonathan Benchmuel @JonathanBenchm1]

The efficiency of a conventional lightbulb is an example of energy conservation, not the law of conservation of energy.
#lesson9

[Jonathan Benchmuel @JonathanBenchm1]

Fukushima was a massive disaster from nuclear power, where a 9.0 Earthquake resulted.
#lesson8

[Jonathan Benchmuel @JonathanBenchm1]

Nuclear energy is the energy held in the nucleus of an atom
Can be obtained by two types of reactions; FISSION AND FUSION
#lesson8

[Jonathan Benchmuel @JonathanBenchm1]

wind power is an alternative energy where we convert air motion to mechanical energy. It's pricy but it good for the environment, as there are no CO2 emmissions from it.
#lesson7

[Jonathan Benchmuel @JonathanBenchm1]

In Quebec you can feed your surplus power back into the hydro-Quebec grid in exchange for credit in killowatt/hours that are applied to your electric bill
#lesson6

[Jonathan Benchmuel @JonathanBenchm1]

did you know that almost 20% of sunlight can be scattered through clouds.
#lesson6

[Jonathan Benchmuel @JonathanBenchm1]

Energy is produced through nuclear fusion in the sun’s core, while the sun itself produces power in the form of light (electromagnetic radiation).
#lesson6

[Jonathan Benchmuel @JonathanBenchm1]

hydraulic fracking can lead to liquid is a mix of water, sand and various chemicals going into water, leading to contaminating water.
#lesson5

[Jonathan Benchmuel @JonathanBenchm1]

Water is then pumped into a well is what kind of fossil fuel process?
#lesson5

[Jonathan Benchmuel @JonathanBenchm1]

Almost half of the world’s proved natural gas reserves are found in two countries, the first two being Russia and Iran. After that comes Saudi Arabia, USA, Turkmenistan, United Arab Emirates etc. Canada ranks 17th.
#lesson5

[Jonathan Benchmuel @JonathanBenchm1]

In the short term we will not run out of oil, but we should find alternatives, cause oil supplies could eventually run out.
#lesson5

[Jonathan Benchmuel @JonathanBenchm1]

In structural traps, Once oil reserves are discovered, and then the drilling commences. 70% of oil production is onshore (drilling on earth’s surface) while the other 30% of oil production is offshore.
#lesson5

[Jonathan Benchmuel @JonathanBenchm1]

In Canada, about 50% of the coal, which is produced is exported to other countries and the rest is used for the production of electricity.
#lesson5

[Jonathan Benchmuel @JonathanBenchm1]

coal mining is a risky business. 90,000 American miners died during the 20th century due to accidents.
#lesson5

[Jonathan Benchmuel @JonathanBenchm1]

Tunnels are built for coal miners when deposits are deeper to access. This dangerous for workers.
#lesson5

[Jonathan Benchmuel @JonathanBenchm1]

did you know that fossil fuels are the largest emitter of carbon dioxide and were formed over 200 millions years ago.
#lesson5