Environment # Oceans

Analyzing past monsoons with foraminifera

Stable oxygen isotopic composition (δ18O) of foraminifera from the sediments of the Northern Indian Ocean has been used to decipher past changes in the intensity of the South Asian Monsoon. The interpretation of planktonic foraminifera δ18O is mostly based on a combination of sea surface temperature, monsoon runoff and the global ice-volume effect. During summer, the eastward flowing summer monsoon current carries the high salinity water from the Arabian Sea to the Bay of Bengal, whereas the Bay of Bengal...


IUCN study finds entire ecosystems affected by climate change

Global changes in temperature have already impacted every aspect of life on Earth from genes to entire ecosystems, with increasingly worrying consequences for humans, according to a new study by the IUCN Species Survival Commission’s Climate Change Specialist Group (SSC CCSG), published in the journal Science. The study found that more than 80 per cent of the ecological processes that form the foundation for healthy marine, freshwater and terrestrial ecosystems are already showing signs of distress...


Himalaya’s Barren Slopes

The Himalaya, one of the prettiest destinations in the world, is under a severe threat of losing its bio-diversity. The essay showcases the problems it faces and suggests a way forward to combat the challenge!


The 17 important days for India’s environment buffs

Everything that surrounds us constitutes our environment. It includes natural as well as manmade, biotic (living) as well as abiotic (non-living) components. Any change in our environment affects us directly or indirectly. Researchers have proved that our environment is degrading day by day. Environmental degradation may be defined as any change or disturbance to the environment perceived to be deleterious or undesirable. It includes the deterioration of the environment through depletion of resources...


Bengaluru wastes almost 50 per cent water from Cauvery River

Latest data on water consumption released by Bengaluru Water Supply and Sewerage Board (BWSSB) has revealed that Bangaluru wastes 49 per cent of water received by Cauvery River. This water is supposed to be used for domestic use of Karnataka. Of the total amount of water supplied to Bengaluru, 49 per cent of what is called ‘non-revenue water’ or ‘unaccounted for water’, i.e. water lost in distribution is wasted by the city, according to the BWSSB. Bangaluru’s population density, 13...


1.2 Billion People and their quest for survival

On May 19, 2016, India recorded its hottest day ever as temperature hit 51OC, breaking the national and continental heat record. Several hundred people are thought to have died during this year’s heatwave, while the records for past year (2015) too present a grim figure of 2500 deaths, mainly caused by heatwave and dehydration. It is imperative to note here that 12 of the 15 warmest years in India were during the past 15 years (2001-2015), while the past decade was the warmest decade on record. As...


11 percent drop in green crimes, says NCRB

The National Crime Records Bureau (NCRB) released their annual report on crimes in India on August 30, 2016. The report, pertaining to 2015 data, brought out statistics on green crimes and provided satisfying data for India as compared to the data released in 2014 - NCRB's first report on green crimes. Environmental crimes in India shows an eleven per cent drop between the two time periods. Laws under which violators are booked are Forest Act, 1927, Wildlife Protection Act, 1972, Environmental (Protection)...

Environment # Water

Majuli: Saving India’s only island district

Majuli is the largest fresh water mid-river deltaic island in the world. The newest entrant in the Guinness Book of World Records this month, this island is situated in the upper reaches of the river Brahmaputra in Assam with mean height of 84.5 m above mean sea level. Covering an area of around 880 sq km Majuli suffers heavy erosion and in the last 30-40 years has been estimated to have lost around one third of its area. Home to around 168,000 people, as per the 2011 Census, the major tribes living...

Environment | VOL. 16, ISSUE 96, May-June 2016

Community Solutions for Environmental Governance

Environmental governance is often led by governmental top down, expert-led solutions for local problems. Community owned solutions that can help communities plan governance and management of land and resource systems may be an effective alternative.

Environment | VOL. 16, ISSUE 96, May-June 2016

E-waste Management in India

Electronic waste (e-waste) refers to discarded electronic equipment or devices such as computers, mobile phones, refrigerators, television sets etc. which are no longer in use and may be put up for resale, reuse or recycle. E-waste is generated when the equipment is dumped by the buyer in cases where reuse, recycle or re-selling is not possible. Further, the resultant residue generated after recycle or reuse of these devices also adds to the e-waste that is generated. E-waste which contains potentially...