![CO2 symbol in front of a school](/sites/default/files/styles/resource_card_image_360x300_/public/2024-06/2024_Original_CO2IndoorsOutdoors_Bil_ResourceHeader.jpg?itok=DIU5YP4K)
Carbon Dioxide: Outdoors and Indoors
Backgrounders
Learn about the importance of carbon dioxide, its sources and how people control it indoors.
![Air conditioner and plant](/sites/default/files/styles/resource_card_image_360x300_/public/2024-06/2024_Stock_AirConditionerPlant_Bil_ResourceHeader.jpg?itok=KAF0Wpna)
Humidity: Outdoors and Indoors
Backgrounders
Learn about the importance of humidity, its sources and how people control it indoors.
![Silhouette of person in front of aurora](/sites/default/files/styles/resource_card_image_360x300_/public/2023-11/aurora-header_GettyImages-510389812.jpg?itok=lvAgTCaV)
Auroras: Spectacular Light Shows
Backgrounders
Learn about auroras - spectacular light shows in the night sky.
![Portrait de Sara Knox](/sites/default/files/styles/career_image/public/2022-11/Sara%20Knox.png?itok=sun9YzHz)
Sara Knox (she/her)
Career Profiles
Assistant Professor (biometeorology)
![Twenty-sided die](/sites/default/files/styles/resource_card_image_360x300_/public/2023-01/twenty-sided%20dice.jpg?itok=AUYETssh)
How Likely Is It?
Backgrounders
Learn about probability, a branch of mathematics that helps us predict if something might happen.
![The three RADARSAT Constellation Mission spacecraft](/sites/default/files/styles/resource_card_image_360x300_/public/2022-01/Image-of-the-RADARSAT-Constellation.jpg?itok=gIL9hYzz)
7 ways Satellites Help Fight Climate Change
Backgrounders
Discover 7 ways satellite Earth observation helps fight climate change.
![Mosaic of the Valles Marineris hemisphere of Mars projected into point perspective](/sites/default/files/styles/resource_card_image_360x300_/public/2021-12/mars-globe-valles-marineris-enhanced.jpg?itok=xYSA2DNX)
Let's Talk Mars Resources
Backgrounders
Discover a set of resources to get you up to speed on the discussion surrounding Mars
![Satellites orbiting Earth](/sites/default/files/styles/resource_card_image_360x300_/public/2021-12/global-positioning-system.jpg?itok=IKUDapOB)
Introduction to Satellites
Backgrounders
Learn about the history, functions, and types of satellites.
![Four Harvard training aircraft](/sites/default/files/styles/resource_card_image_360x300_/public/2021-12/harvards.jpg?itok=54yNGDe_)
How Planes Fly
Backgrounders
Learn about what gets planes up in the air, what keeps them up there, and what brings them down again.
![Astronauts from the Apollo Mission landing on the moon.](/sites/default/files/styles/resource_card_image_360x300_/public/2021-01/moon_landing.jpg?itok=7GFV-Nbc)
Let's Talk Lunar Resources
Backgrounders
Discover some background information on how we'll learn to live and work on the Moon - and beyond!
![Hands holding a hot mug](/sites/default/files/styles/resource_card_image_360x300_/public/2021-01/mittens_hot_mug.jpg?itok=wwJZkYcs)
Introduction to Heat Transfer
Backgrounders
Learn about the different ways that heat is transferred.
![Wind turbine and electrical cord](/sites/default/files/styles/resource_card_image_360x300_/public/2020-12/wind_turbine_electrical_cord.jpg?itok=i_itaA0Q)
Generating Electricity: Wind Power
Backgrounders
Learn how moving air can be used to generate electricity.
![Jean Paquin outside](/sites/default/files/styles/career_image/public/2020-12/Jean%20Paquin%20RTA-web.jpg?itok=9XAoLiFz)
Jean Paquin
Water Resources Analyst Engineer at Rio Tinto
![Solar power illustration](/sites/default/files/styles/resource_card_image_360x300_/public/2020-12/solar_power_illustration.png?itok=PaRrwSTJ)
Generating Electricity: Solar Cells
Backgrounders
Learn how energy from the Sun can be used to generate electricity.