Overall, environmental science is the field of science that studies the interactions of the physical, chemical, and biological components of the environment and also the relationships and effects of these components with the organisms in the environment.
1 Add onions to glass jars or a bowl. 2  Toast cinnamon, cloves and the red pepper flakes in a small saucepan over medium heat until fragrant, 3 to 5 minutes. 3  Whisk in vinegar, lime juice, a 1/4 cup of the sugar and salt. 4  Bring to a simmer and cook until sugar and salt have dissolved, 1 to 2 minutes.
1 Change water twice. 2  To make the pickling solution, combine water, vinegar, seasonings and sugar in a saucepan; bring to a boil. 3  Stir to dissolve sugar; let cool. 4  Rinse the fillets with cold water and pat dry with paper towels. 5  Cut fish in 1-inch pieces removing bones. 6  Peel and slice onion.