...in 2010—the last year with average winter snowfall in the region—and 2015 across the Sierra Nevada Mountains. (Swipe sideways to compare.) These impacts can be mitigated through investing in new...

...of conveyance and storage infrastructure is controlled by federal, state, and local agencies. Download the entire publication for free. Although many people benefit from the improved infrastructure, the projects remain...

...fuels are in nearly everything we use in our modern life, from plastics and pigments to common building materials. Tap items to learn more. Image Credits: aquariagirl1970/Shutterstock.com; Madlen/Shutterstock.com; Pakhnyushchy/Shutterstock.com; Kekyalyaynen/Shutterstock.com....

...the radiant energy of the sun. Secondary energy comes from transforming primary energy, and includes things like gasoline and liquid fuels, refined biofuels, electricity, hydrogen, and heat. Image Credits: SPACE_MICROBE/Shutterstock.com....

...them of a chance to thrive. Solid water’s lower density allows physical changes of water to occur (freezing and thawing) while life continues below. Image Credits: Olga Nikonova/Shutterstock.com; Melissa King/Shutterstock.com....

...consumes about half of Earth’s surface’s incident solar radiation.8 Vaclav Smil, Energy: A Beginner’s Guide (London: Oneworld Publications, 2006). Essentially, the sun acts as a massive water pump, elevating water...

...the house, thereby reducing the need for air conditioning. However, such a configuration can be difficult to retrofit to existing homes. Image Credits: hramovnick/Shutterstock.com; Jeffrey M. Phillips/Webber Energy Group; Alexxxey/Shutterstock.com....

...geological zone with a large volume of water that is naturally stored in porous rock such as sandstone. Igor Shiklomanov, “World fresh water resources” in Water in Crisis: A Guide...

...more complex and limited, and could be represented using an S curve. Over history, total population has grown exponentially. For exponential growth, a population of 1 million with a growth...