Most of the time, Portland's drinking water comes from the Bull Run watershed, 102 square miles of pristine forest on the western flank of Mount Hood. But Portland is among the lucky few ...

(Beyond Pesticides, October 4, 2022) A study published in Environmental Pollution finds pyrethroid insecticides contribute to a secondary source of contamination in water resources. Various ...

Good writing often follows good research. Research includes locating quality sources, understanding the difference between primary and secondary sources, and using these materials to support analysis ...

What are the sources of law? The usual first-year answer is that there are primary sources (legislation and precedent), and there are secondary sources (textbooks, journal articles, obiter dicta).