Environmental phenomena are often observed first, and then explained quantitatively. The complexity of processes, the range of scales involved, and the lack of first principles make it challenging to predict conditions beyond the ones observed.
The wintertime Arctic stratospheric polar vortex has weakened over the past three decades, and consequently cold surface air from high latitudes is now more likely to move into the middle latitudes. However, it is not known if the location of the polar vortex has also experienced a persistent change in response to Arctic climate change and whether any changes in the vortex position have implications for the climate system.
Analysis of observations and model projections provides large-scale emergent constraints on the extent of CO2 fertilization, with estimated increases in gross primary productivity for both high-latitude and extratropical ecosystems under elevated atmospheric CO2 concentrations.
It is universally acknowledged that at climate conferences, politics or diplomacy based primarily on considerations of power and on practical and material factors overrides explicit ideological notions or moral or ethical premises.
With relations between countries now being shaped by geo-economics rather than geo-politics, an emerging issue is to what extent the United States, China and India, all populous countries and top tier economies, see their national interest in giving a new meaning to words like “responsibility”, “development” and “growth”...
Climate for Kids
Without sharing information on climate change in South Asia nothing can be achieved. We share the same resources and face the same problems. This book narrows our focus to take a closer look.
Over the past few days, we have been giving you all the gyaan you needed on the UN Climate Change conference held in Doha. But just in case you missed out, here is a comprehensive assessment of CoP 18 by Sunita Narain, Director General, CSE.