As the 21st century progresses, we're all aware that that our lives need to become more eco-friendly. Green chemistry is a way to make that happen. One of the pioneers of green chemistry is Robert Howard Grubbs.
You know that plants are green because they contain chlorophyll. You also know that chlorophyll is important for photosynthesis. But do you know that it was a scientist called Richard Martin Willstatter who discovered it?
Some scientists love science simply because it is wonderful. Some pursue science because they feel "Research is for nations and mankind, not for researchers themselves". Prof. Ryoji Noyori firmly believes in the latter.
While the role of CFCs in depleting the ozone layer is well-known, there are many other gases that deplete ozone and act as greenhouse gases. The role of these gases was explained by Paul Crutzen, who got the Nobel Prize in Chemistry in 1995.
In 1987, countries around the world agreed upon the Montreal Protocol, a treaty to eliminate chemicals which deplete the ozone layer. Frank Rowland and Mario Molino deserve the credit for this, for they showed exactly how CFCs destroy ozone.
We owe a lot of our understanding of the field of isotopes to Harold Urey, who won the Nobel Prize in Chemistry in 1934. Urey also contributed to building the atom bomb and notably the development of organic life from non-living matter.