April 2, 2018 Cover
Volume 96, Issue 14
Congress exempts farms from reporting air pollutants to federal agencies, leaving states to deal with animal waste releases
Cover:Photos of egg-laying chickens in battery-style cages and egg-laying chickens in cage-free housing confined in a small space.
Compounds switched on and off with light may limit side effects when used against cancer, blindness, and other disorders
Trudeau government proposes to add 4 billion Canadian dollars over five years for research programs
Reactions at one active site influence reactions at other sites within the same particle and between nearby particles