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Freshwater availability is changing worldwide. Here we quantify 34 trends in terrestrial water storage observed by the Gravity Recovery and Climate Experiment (GRACE) satellites during 2002–2016 and categorize their drivers as natural interannual variability, unsustainable groundwater consumption, climate change or combinations thereof. Several of these trends had been lacking thorough investigation and attribution, including massive changes in northwestern China and the Okavango Delta. Others are consistent with climate model predictions.

More than 80% of people living in urban areas that monitor air pollution are exposed to air quality levels that exceed the World Health Organization (WHO) limits. While all regions of the world are affected, populations in low-income cities are the most impacted.
 

In Beijing’s battle against pollution lies lessons for New Delhi, amid the debate in the capital over the effectiveness of the government’s odd-even scheme to curtail deteriorating air quality.

BEIJING/NEW DELHI: The recently concluded Communist Party Congress saw Chinese president Xi Jinping calling for the establishment of a "beautiful China". His emphasis was on fighting pollution.

More than 70 per cent of companies checked by Chinese authorities failed environmental standards during the latest round of air pollution inspections, state media reported on Sunday.

Beijing and its neighbors have pledged to intensify efforts in cutting air pollution to meet the target of lowering the average annual PM2.5 density in the region to about 60 micrograms per cubic m

China's war on smog has stepped up another gear with reports suggesting Beijing is planning to cut coal use by a further 30 per cent across the capital this year.

This is the first time that a graded plan to improve air quality will be enforced in India. It will have a set of fixed measures that will kick in when pollution reaches specific levels.

Exceedingly high levels of fine particulate matter (PM) occur frequently in China, but the mechanism of severe haze formation remains unclear. From atmospheric measurements in two Chinese megacities and laboratory experiments, we show that the oxidation of SO2 by NO2 occurs efficiently in aqueous media under two polluted conditions: first, during the formation of the 1952 London Fog via in-cloud oxidation; and second, on fine PM with NH3 neutralization during severe haze in China.

The total losses caused by natural disaster have spatial heterogeneity due to different economic development level inside the disaster-hit areas. This paper set the scenarios of direct economic loss to introduce the sectors' loss caused by 2008 Wenchuan earthquake into Beijing, utilized Adaptive Regional Input–Output (ARIO) model and Inter-regional ripple effect (IRRE) model.

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