Prelims Notes

PARIVESH is a web based, role based workflow application which has been developed for online submission and monitoring of the proposals submitted by the proponents for seeking Environment, Forest, Wildlife and CRZ Clearances from Central, State and district level authorities. It automates the entire tracking of proposals which includes online submission of a new proposal, … Read more

Black carbon is a potent climate-warming component of particulate matter formed by the incomplete combustion of fossil fuels, woods and other fuels. It is a short loved climate pollutant with a significant direct and indirect impacts on the climate, glacial region, agriculture and human health. Impact of Black Carbon: Climate Impact: It is very effective … Read more

‘One Number- One Colour-One Description’ for the common man to judge the air quality within his vicinity. There are six AQI categories, namely Good, Satisfactory, Moderately polluted, Poor, Very Poor, and Severe.  The proposed AQI will consider eight pollutants (PM10, PM2.5, NO2, SO2, CO, O3, NH3, and Pb) for which short-term (up to 24-hourly averaging period) … Read more

It is the UN programme working towards a better urban future. Its mission is to promote socially and environmentally sustainable human settlements development and the achievement of adequate shelter for all.  It reports to the United Nations General Assembly. United Nations Conference on Housing and Sustainable Urban Development (Habitat conference) is held once in bi-decennial … Read more

It is a number used to communicate to the public how polluted the air currently is or how polluted it is forecasted to become. As AQI increases, an increasingly large percentage of the population is likely to experience increasingly adverse health effects.  Different countries have their own air quality indexes, corresponding to different national air … Read more

They do not contain harmful chemicals that would cause air pollution.  Components are replaced with others that are less dangerous and less harmful to the atmosphere.  The idea was carried forward by a network of CSIR labs.  The team came up with 3-4 formulations and looked at 30-40% of active materials which reduce particulate matter.  … Read more

Concept Definition Carbon sequestration Carbon sequestration is the process of removing carbon from the atmosphere and storing it in a fixed molecule in soil, oceans or plants. Carbon sink  An organism or landscape that stores carbon is called a carbon sink. Carbon source An organism or landscape that emits carbon is called a carbon source. Climate change adaptation … Read more

Net metering: Net metering is a billing mechanism that credits solar energy system owners for the electricity they add to the grid. For example, if a residential customer has a PV system on the home’s rooftop, it may generate more electricity than the home uses during daylight hours. If the home is net-metered, the electricity … Read more

Trichoderma harzianum is a naturally occurring fungus, which is used as a biofungicide to protect mulberry (Morus alba L.) from root-rot and wilt diseases caused by other harmful fungi. A talc-based biofungiside (Raksha) has been developed using T. harzianum for the control of root rot diseases of mulberry. Raksha is applied after mixing with farm-yard … Read more

: National Green Corps is a major initiative of MOEFCC for creating environmental awareness launched in 2001-02 which aims at building cadres of young children working towards environmental conservation and sustainable development .   It is operated through Eco-clubs set up in schools registered as members of  NGC, this programme exposes school children to in-depth field … Read more