When conducting research, it is helpful to know the history and background of topics and themes. For example, understanding the historical background of racism in politics, education, health care, etc., is necessary to understand where America is today. Subject encyclopedias are excellent sources that provide the historical roots of a problem and identify people, organizations, an efforts that are involved in resolving the conflicts and controversies. Reference sources can also help you narrow your topic and discover keywords for further searching.
Below are library reference sources that will provide you with background information on all of the possible topics. Each encyclopedia offers entries on multiple aspects of racism.
Mountaineering
Mt. Everest
Sherpas
Climate change
Conservation
Equipment
Search and rescue operations
Political aspects
Religious aspects
People with disabilities
Environmental aspects
Tourism / Ecotourism
National Parks