Environmental Science

1. Environmental Policies in India Definition Environmental policies are guidelines and strategies formulated by the government to protect the environment and ensure sustainable development . India has developed strong environmental policies to balance economic growth and environmental protection . These policies aim to reduce pollution, conserve natural resources, and promote sustainable practices. Key Features Pollution control measures Conservation of forests and biodiversity Promotion of renewable energy Public awareness and participation Examples National Environment Policy (2006) National Action Plan on Climate Change (NAPCC) Ban on single-use plastics in many states Promotion of solar energy in cities like Surat Swachh Bharat Mission improving waste management 2. Environmental Acts in India 2.1 Air (Prevention and Control of Pollution) Act, 1981 Definition A law enacted to prevent, control, and reduce air pollution . It establishes Pollution Cont...

  1. Climate Change Definition Climate change refers to the long-term change in Earth’s temperature, rainfall, wind patterns, and overall climate system over decades or centuries . Climate change includes not only global warming but also changes in weather extremes, seasonal patterns, and ecological balance. Earlier, climate change occurred naturally over thousands of years, but today it is happening rapidly due to human activities. Examples Increase in global average temperature Irregular monsoon patterns More frequent heatwaves and floods In Gujarat , summers are becoming hotter every year, with temperatures crossing 45°C more frequently. In Himachal Pradesh , snowfall patterns are changing, affecting tourism and agriculture. Globally, countries like Maldives face rising sea levels threatening their existence. 2. Global Warming Definition Global warming is the gradual rise in Earth’s average surface temperature due to increased greenhouse gases . It is mai...

  1. Introduction to Renewable Sources of Energy Definition Renewable sources of energy are those energy resources that are naturally replenished on a human timescale and are not depleted when used. Renewable energy plays a vital role in reducing dependence on fossil fuels such as coal, petroleum, and natural gas. These conventional energy sources are limited and contribute significantly to environmental pollution and climate change. Renewable energy sources include solar, wind, biomass, geothermal, ocean, and hydrogen energy. These sources are eco-friendly, sustainable, and widely available. Key Features Environmentally friendly Sustainable and inexhaustible Reduce greenhouse gas emissions Promote energy security 2. Need of Renewable Energy and Energy Policy Definition (Need of Renewable Energy) The need for renewable energy arises due to the depletion of conventional energy resources and the environmental impact caused by their use. The rapid growth in population and industrializ...