Google has dedicated the doodle for the day (27^th May 2014) to Rachel Louise Carson, an American marine biologist and conservationist, oh her 107^th birthday. She explored the ocean life and published her work and research in four books her national award winning bestselling trilogy (The Sea around Us, The Edge of the Sea and Under the Sea Wind) and Silent Spring.

Silent Spring was noted and credited with advancing the global movement on environment. Silent Spring focuses on the impact of synthetic pesticides on the environment, with the title referring to the absence of birdsong across swathes of agricultural landscape following the widespread introduction of pesticides and other intensive farming practices.

In 1950s, she started campaigning against the use of DDT (Dichloro Diphenyl Trichloroethane), a common insecticide, in the United States of America. In Silent Spring, she demonstrated that these pesticides could cause cancer and that their agricultural use was a threat to wildlife, particularly to birds. This eventually led to the ban on agricultural use of DDT in America in 1972.

Her book, 'The Sea Around Us' was made into a documentary film. Carson was unhappy about the final version of the script by writer Irwin Allen. The documentary went on to win the Oscar for the 'Best Documentary' in 1953. Carson however, was so embittered by the experience of not having any control over her own content, that she never sold film rights to her work ever again.

Carson was awarded the 'Presidential Medal of Freedom', the highest civilian honor in the United States of America. Her home in Pennsylvania was renamed as 'Rachel Carson Homestead' and became a National Register of Historic Places in 1975.

Carson is also credited with being an inspiration for the creation of the US Environmental Protection Agency, a US government agency focused on protecting human health and the environment.

A worldwide ban on DDT's agricultural use was formalized under the Stockholm Convention, but its limited use in disease vector control continues to this day and remains controversial.