Deforestation and the use of fossil fuels are not the only human activities causing climate change. Other aspects of modern life are adding to the problem by producing greenhouse gases, like methane, nitrous oxide and chlorofluorocarbons. Let’s examine where they come from.

This episode of The Aviators includes the following segments: AirVenture, America's Largest Aviation Celebration; The U.S. Air Force's C5M Supergalaxy; The Tiger Moth Biplane; Miracle on the Hudson Hero Jeff Skiles; and Flat Spin Survivor.

This Program from the Combat Studies Institute is designed to give military instructors ideas on presenting "Nuclear Weapons and the Cold War," lesson 12 in "Evolution of Modern Warfare." It offers suggestions for how to present the Cold War context, thinking on nuclear strategy and deterrence, and the post-WWII reorganization of the military and national security apparatus. Panelists show how the existence of nuclear weapons led to questions of whether...

The most complete and comprehensive HVAC technician certification book on the market now features updated information and an interactive online practice exam experience. The DEWALT HVAC Certification Exam Guide, 3E is fully equipped to give you the tools you need to prepare for the NATE, ICE, and RSES Certifications, as well as the HVAC Excellence and HVAC Technician Licensing Exams. It also serves as a valuable resource in studying for the state...

Our oceans are changing as the planet heats up with far-reaching consequences. An extraordinary group of marine experts from Antarctica to Australia, from Florida to New Zealand, examines the impact and reveals how science, nature and traditional knowledge can prepare us for a fast-changing future.

The Clean Water and Clean Air Acts are federal laws that rely upon citizen participation for their successful implementation. This lesson chapter explains how model ordinances can be put into place to assist municipalities in becoming more sustainable, and the role that students, teachers and citizen activists can play in that process. This section explores how citizens’ willingness to pay, through state and local bond issues, for parks, public...

This program explores the seven recognized continents on our planet. It introduces the viewer to the topography of each region as well as the mega cities found across the globe. The continents are explored in order of size from largest to smallest.

Water covers most of our Earth’s surface area. In this program, we’ll discuss the characteristics of the sea and its impact on climates and coast lines. Topics include: Marine Plants, Sea Water Characteristics, Ocean Currents, Sea Water Temperature, Wave and Tide Formation, Tsunamis, The Sea Bed, and Underwater Gas and Petroleum Deposits.

Every house begins with a foundation, but you'll need to determine what kind. This program explains the three types of foundations-basement foundation, crawl space foundation, and slab-on-grade-and uses a full basement foundation in a seasonal climate to illustrate basic techniques and concerns, including the use of footings, building forms, load-bearing values of the soil, and methods for pouring and curing concrete. Correlates to the Competencies...

In Uganda, Siwan quickly learns how important trees are for the survival of the vulnerable community of Mbale. Despite being 15,000km apart, with differing cultures, traditions and wealth, Uganda and California share one very important commonality—they are both on the frontline of the climate challenge.