BPSC Prelims and Mains Notes, BPSC Test Series
The Living Planet Index (LPI) is a measure of the state of global biological diversity based on population trends of vertebrate species from around the world. It does this in much the same way that a stock market index tracks the value of a set of shares or a retail price index tracks the cost … Read more
UNEP’s Blue Carbon Initiative aims to develop a global partnership to advance the sound management of coastal and marine ecosystems in order to ensure that their carbon sequestration and storage functions are maintained, and emissions of greenhouse gases are avoided. The initiative aims at achieving the following overall targets by 2025: Reversing the current trend … Read more
ECOLOGY Ecology is defined “as a scientific study of the relationship of the living organisms with each other and with their environment.” The classical texts of the Vedic period such as the Vedas, the Samhitas, the Brahmanas and the Aranyakas-Upanishads contain many references to ecological concepts .The Indian treatise on medicine, the Caraka- Samhita … Read more
An increase in the average temperature of Earth’s near surface air and oceans since the mid-20th century 4th assessment report of IPCC: global temperature increased 74+0.18 degree C during the 20th century. Caused by greenhouse gases Water vapour, Co2, Methane, Nitrous Oxide, Ozone, CFCs (in order of abundance) Since the industrial revolution, the burning of … Read more
The rapid pace of population growth has led to the excessive utilization of natural resources. Huge population also leads to huge production of wastes. The resultant outcomes are loss of biodiversity, pollution of air, water and soil and increased pressure on arable land. All these have been putting great stress on the environment. If … Read more
Flagship species: A flagship species is a species selected to act as an ambassador, icon or symbol for a defined habitat, issue, campaign or environmental cause. By focusing on, and achieving conservation of that species, the status of many other species which share its habitat – or are vulnerable to the same threats – … Read more
: The United Nations Conference on the Human Environment (also known as the Stockholm Conference) was an international conference convened under United Nations auspices held in Stockholm, Sweden from June 5-16, 1972. It was the UN’s first major conference on international environmental issues, and marked a turning point in the development of international environmental politics. … Read more
Convention on biodiversity is a multilateral treaty which was opened for signature on 5th June at earth summit. It entered into force in 1993. It is a legally binding treaty when a party has ratified it. The convention has basically three goals: Conservation of biological diversity Sustainable use of the components Fair and equitable sharing … Read more
The thrust of the Scientific Policy Resolution, 1958 was on capacity-building in advancement of science as the foundation for making a strong nation, which had just freed itself from the shackles of colonial domination . The focus of the Technology Policy Statement, 1983 was attainment of technological self-reliance and building of national strength by reducing … Read more
The interrelations between organisms and environment on the land constitute “Terrestrial Ecology”. The most important limiting factors of the terrestrial ecosystems are moisture and temperature. TUNDRA The word tundra means a “barren land” since they are found where environmental conditions are very severe. There are two types of tundra- arctic and … Read more