Journal Articles

We hereby present the variability of fine particles (PM1 ≤ 1 micron) that has not yet been investigated under the influence of COVID-19-induced lockdown in three major cities of different climatic zones in India. We unfold the baseline level of PM1, a level to which the population is chronically exposed and extremely critical for epidemiologists for fixing health markers. This has been achieved using the saturation point methodology under fair weather conditions. The baseline level of PM1 for Delhi and Mumbai is found to be 13 µg m− 3 and 9 µg m− 3, respectively.

A tribute is paid to Prof Bikash Sinha describing his pioneering research and his contribution to leading Variable Energy Cyclotron Centre and Saha Institute of Nuclear Physics on to a path of glory and initiating international collaborations with several Institutes, including CERN Geneva and BNL, Upton, New York, USA.

Many primate species show various behavioural and ecological adaptations to provisioning, one of which is the unusual occurrence of twins. Here, we report observations on two pairs of twins in the Puthuthottam population of lion-tailed macaques Macaca silenus in the Anamalai Hills of the Western Ghats and show that some lion-tailed macaque twins can survive under free-ranging conditions if they receive adequate care from their biological mother or another female.

The predictions on the disaster scenarios in the Himalayan states have come true. We are now witnessing the consequences of human interventions that have contributed to the intensity of disasters, impacting the lives and livelihoods of the people.

This study aimed to monitor long-term land use dynamics for understanding the natural forest integrity and intactness of the Rajiv Gandhi (Nagarhole) Tiger Reserve (RTR) pre- and post-declarations as TR. We employed multi-source data from Survey of India Toposheets (1:50 k), Landsat-7, and Sentinel-2A along with Global Ecosystem Dynamics Investigation (GEDI) vegetation canopy height (10 m) data, a high-spatial resolution CORONA (1970) images and temporal Google Earth Pro images for mapping and validation.

News item on the Climate Change International meeting

Invited News item by Geological Society of India