Steno's laws

Identified the parotid gland

Studied the structure of muscles and nerves

Original scale was reversed

Later modified by Carl Linnaeus

Observations of the aurora borealis

Cataloged stars and studied the zodiacal light

Developed the binomial nomenclature system

Classified and named thousands of species

Explored Lapland and the Dutch Republic

Published "Systema Naturae"

Advocated for the importance of plant breeding

Influenced the development of botanical gardens

Developed modern chemical symbols

Discovered several chemical elements

Formulated the laws of electrochemical series

Pioneered the use of electrochemistry in chemical analysis

Studied the chemical composition of the human body

Published a medical dictionary

Developed the theory of electrolytic dissociation

Predicted the greenhouse effect

Studied the origin of cosmic radiation

Proposed the existence of interstellar dust

Advocated for the importance of carbon dioxide in climate change

Influenced the debate on global warming