The Turonian (93.5 to 89.3 million years ago) was one of the warmest periods of the Phanerozoic eon. It has been argued that there may have been several stages of continental ice growth during the period, reflected in both erosional surfaces and geochemical records associated with possible glaciation-induced sea-level falls.

In a research by paleoceanographer Andre Bornemann of Leipzig University in Germany and his colleagues analyzed apparently unaltered Foraminifera picked from sediment core drilled from Demerara Rise beneath the western equatorial Atlantic. Following a classic technique, the researchers measured oxygen isotopes in the forams' shells. They found a sharp shift toward the heavier oxygen-18 isotope in both surface and bottom dwelling forams from 91.2 million years ago.

some winter crops (wheat, mustard, barley and chickpea) in northwest India was evaluated on the basis of historic records and through a dynamic crop growth model, WTGROWS. The optimal date of sowing was also evaluated in view of the increase in seasonal temperature. The yield of these crops, especially wheat, already showing signs of stagnation in most places of northwest India, is most likely to be affected by temperature

As the world warms, the plants that billions of people depend on for their food are likely to become less nutritious. That's the worrying conclusion of an analysis of more than 40 studies investigating how crops will react to increasing levels of carbon dioxide in the atmosphere.

An outstanding climate anomaly 8200 years before the present (B.P.) in the North Atlantic is commonly postulated to be the result of weakened overturning circulation triggered by a freshwater outburst. New stable isotopic and sedimentological records from a northwest Atlantic sediment core reveal that the most prominent Holocene anomaly in bottom water chemistry and flow speed in the deep limb of the Atlantic overturning circulation begins at '8.38 thousand years B.P., coeval with the catastrophic drainage of Lake Agassiz.

Mangrove ecosystems are threatened by climate change. We review the state of knowledge of mangrove vulnerability and responses to predicted climate change and consider adaptation options. Based on available evidence, of all the climate change outcomes, relative sea-level rise may be the greatest threat to mangroves. Most mangrove sediment surface elevations are not keeping pace with sea-level rise, although longer term studies from a larger number of regions are needed.

Level of urbanization has been increasing in India since the last five decades. This trend is likely to continue in the near future. More people will become city residents, increased number of people will have to necessarily live on a limited amount of developed land. In this context, people will demand more housing and everything else associated with urban living including modern physical and social infrastructure. These facilities will be provided with intense use of technology. This urban condition could have devastating climatic and sustainability consequences.

Higher atmospheric CO2 concentration may influence positively plant production once the substrate for photosynthesis and gradient increase between the ambient air and mesophyll cells.