Krista Totarella

PHYS 273- WINTER 2020

[Krista Totarella @ktotarella25]

A fact about air pollution; most of our serious air pollution is produced either directly or indirectly by the combustion fuels! #Lesson10 #Pollution #PHYS273

[Krista Totarella @ktotarella25]

A quote from @GretaThunberg for the youth, to use our voices for #ClimateChange because this is our home! And we must protect it #PHYS273

[Krista Totarella @ktotarella25]

Effective adaptation and mitigation responses will depend on policies and measures across multiple scales: everywhere!! #Lesson12 #PHYS273

[Krista Totarella @ktotarella25]

Increasing climate change will increase challenges for many adaptations options. Some climate-related drivers of impacts are extreme temperatures, warming trends, etc. #Lesson12 #PHYS273

[Krista Totarella @ktotarella25]

Something that we should all keep in mind is that #ClimateChange will amplify existing risks and create new risks for natural and human systems! It is a direct risk to us. #Lesson12 #PHYS273

[Krista Totarella @ktotarella25]

Strong, consistent, and almost linear relationship between cumulative CO2 emissions and projected global temperature change to the year 2100! #Lesson12 @PHYS273

[Krista Totarella @ktotarella25]

CO2 is a greenhouse gas that increases temperature at which an energy balance is reached! Great fact #Lesson11 #PHYS273

[Krista Totarella @ktotarella25]

The amount of CO2 in the atmosphere has increased by 30 to 40% over pre-industrial levels. #Lesson11 #PHYS273

[Krista Totarella @ktotarella25]

Changes in extreme weather and climate events have been observed since 1950s. Some of them have been linked to us humans; such as a decrease in cold temperature extremes! #Lesson11 #PHYS273

[Krista Totarella @ktotarella25]

I agree! There are carpooling lanes in Montreal on some highways, which are a great incentive! With all our Montreal traffic of course! #Lesson10 #PHYS273

[Krista Totarella @ktotarella25]

This is insane! Imagine all of the sea life that is affected by this😢 #Lesson10 #PHYS273

[Krista Totarella @ktotarella25]

With chaos all around, there is a positive in this decrease in air pollution in China! #Lesson10 #PHYS273

[Jonathan Chung Tit Yin @JC40095776]

Despite the tragedy of COVID-19 and with everything going on around the world, here is a figure that shows us the decrease in air pollution in China due to factories closing down. (early February) #LESSON10 #airpollutants

[Krista Totarella @ktotarella25]

Interesting fact, thanks for sharing this! #PHYS273 does in fact apply in our daily lives #Lesson9

[Krista Totarella @ktotarella25]

Interesting fact! I wonder why only 5% of the energy is efficient? #Lesson9 #PHYS273

[Natasha Riccio @riccio_natasha]

The concept of efficiency is interesting and new to me. We use light bulbs on a daily basis and it’s crazy that only 5% of the energy used is efficient. #Lesson9

[Krista Totarella @ktotarella25]

Another fun fact is it contains high concentration of ozone in relation to other parts of the atmosphere! #Lesson10 #PHYS273

[Natasha Riccio @riccio_natasha]

Fun Fact #1: The Ozone layer absorbs the Sun’s damaging UV radiation in order to protect the Earth. #Lesson10

[Krista Totarella @ktotarella25]

Another fun fact: It is 50 km above the earth's surface! #Lesson10 #PHYS273

[Natasha Riccio @riccio_natasha]

Fun Fact #2: Planes fly in the same layer of the atmosphere - the Stratosphere- that the Ozone layer is in. #Lesson10

[Krista Totarella @ktotarella25]

Same here! It is odourless un reactive gas that forms about 78% of the earth's atmosphere! I had no idea either #Lesson10 #PHYS273

[Natasha Riccio @riccio_natasha]

Fun Fact #3: Nitrogen makes up 78.08% of our Atmosphere ahead of Oxygen, Argon and Carbon Dioxide. I didn’t even know what Nitrogen was before this. #Lesson10

[Krista Totarella @ktotarella25]

It will increase them more than it has already! So many key points that you have pointed out, thanks for that! #ClimateChange #Lesson12 #PHYS273

[Sofia Constantopoulos @SofiaConstanto1]

There is a projection that climate change will exacerbate existing health problems #Lesson12

[Krista Totarella @ktotarella25]

This might not been a mistake by our generation, but we played a part. Which is why we should all make it our priority to help fight #ClimateChange #Lesson12 #PHYS273

[Sofia Constantopoulos @SofiaConstanto1]

Many species are facing extinction due to climate change during the 21st century #Lesson12

[Krista Totarella @ktotarella25]

Which affects us, which is why we must take action now! #Lesson12 #PHYS273

[Sofia Constantopoulos @SofiaConstanto1]

The northern hemispheres face global warming in a more extreme way than the rest of the world #Lesson12