Author

Hari Walker Page 7

A public middle school science instructor in Duluth, Minnesota, Hari Walker has taught earth and physical science for over a decade. He maintains an outdoor weather station where students record temperature and humidity readings every morning. Walker received degrees in science education.

How a Small Amount of CFCs Destroys a Large Amount of Ozone Chemistry
How Does the Earth-Sun Relationship Create the Seasons?Earth & Space
Why Is the Arctic a Desert Despite All the Ice?Earth & Space
How Does the Sun Power the Water Cycle?Earth & Space
Why Are Days Getting Shorter? The Science of Axial Tilt Earth & Space
Is Oxygen a Greenhouse Gas? Why It Doesn’t Trap Heat Chemistry
Which Phenomena Release CO2 Into the Atmosphere?Earth & Space
How Does the Sun Create Motion in the Ocean?Earth & Space
What Might Happen if the Greenhouse Effect Didn’t Exist?Environment
What Do Scientists Study to Reconstruct Past Climate Conditions?Earth & Space
The CO2 and Temperature Graph: A Visual Relationship Environment
The Role of Evapotranspiration in the Water Cycle Earth & Space
The Cloud Effect: How Clouds Cool and Warm Our Planet Earth & Space
How the Ozone Layer Helps to Sustain Terrestrial Life Environment
The North Atlantic Gyre: Its Currents, Climate, and Life Earth & Space
What Are Trace Gases and Why Are They Important?Earth & Space
What Caused the End of the Last Ice Age?Earth & Space
What Is Atmospheric Carbon Capture and How Does It Work?Environment
What Is the Greenhouse Balance and Why It Matters Environment
How Are Ozone Depletion and Skin Cancer Rates Related?Environment
What is Evapotranspiration in the Water Cycle?Earth & Space
Snowmelt: The Science, Benefits, and Hazards of Melting Snow Earth & Space
What Is Air Carbon and How Does It Affect the Climate?Environment
What a Grassland Climatogram Reveals About Its Biome Environment
What Are Global Patterns and What Causes Them?Earth & Space
The Younger Dryas Period: A Sudden Global Freeze Earth & Space
The Scientific Evidence for Climate Change Environment
Sea Surface Temperature: Measurement, Causes, and Impacts Earth & Space
Why Does Groundwater Decrease When Precipitation Decreases?Earth & Space