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In June of 2018, Worthy Garden Club hosted Dr. Bill Ripple, distinguished professor of ecology in the Department of Forest Ecosystems and Society at Oregon State University, for his first lecture on "What Wolves Can Tell us About the Word's Health." Ripple became involved in climate change activism after researching wolf reintroduction in Yellowstone Park, leading him to study the beneficial role of large predators in ecosystems throughout the U.S. as well as global trends in rising animal extinction rates, decreasing freshwater availability, forest area loss and extreme weather events. The all appeared to be tied to an increase in human and ruminant livestock populations as well as carbon dioxide emissions. So, 25 years after the "World Scientists' Warning to Humanity," Ripple co-authored the "Second Notice,"cautioning that “a great change in our stewardship of the Earth and the life on it is required, if vast human misery is to be avoided.”  He recently founded the Alliance of World Scientists, an International assembly of over 14,000 scientists, independent of both governmental and non-governmental organizations and corporations, which aims to be a collective international voice of many scientists regarding global climate and environmental trends and how to turn accumulated knowledge into action. He is one of the loudest voices in the scientific community surrounding climate change solutions and continues to fight for an informed, common-sense approach to our climate emergency.