I consider myself an environmentalist. I write about the earth, think about the earth, care about the earth. I wrote my rabbinical thesis partly on Judaism and the environment, and I helped found en environmental advocacy committee in my synagogue.
Literally, “four species.” The Torah specifies four species to bring together on Sukkot. The four species are: lulav (branches of palm trees), etrog (citron), hadasim (myrtle branches), and aravot (willows) (Leviticus 23:40).