Projected future trends in water availability are associated with large uncertainties in many regions of the globe. In mountain areas with complex topography, climate models have often limited capabilities to adequately simulate the precipitation variability on small spatial scales. Also, their validation is hampered by typically very low station density. In the Central Andes of South America, a semi-arid high-mountain region with strong seasonality, zonal wind in the upper troposphere is a good proxy for interannual precipitation variability.

Glaciers in the Himalayan region are retreating following climate change which can lead to water scarcity for the people living downstream areas.

The first decade of the twenty-first century has not been a good one for the planet's climate. Of the 15 warmest years on record, 14 have occurred since 2000.

In yet another sobering sign that climate change is drastically altering our planet, National Geographic has updated its "Atlas of the World" in what it calls "one of the most striking changes in t

It turns out that glaciers are melting faster than ever.

A worldwide study has revealed that during 2001 to 2010, glaciers lost ice at an alarming two to three times the average for the 20th century.

Observations show that glaciers around the world are in retreat and losing mass. Internationally coordinated for over a century, glacier monitoring activities provide an unprecedented dataset of glacier observations from ground, air and space. Glacier studies generally select specific parts of these datasets to obtain optimal assessments of the mass-balance data relating to the impact that glaciers exercise on global sea-level fluctuations or on regional runoff.

Following the post of my colleague, Dana Nuccitelli on misreporting of ice trends, this article is a timely guest post by Neven Acropolis who runs the Arctic Sea Ice blog.

The Arctic is warming at a rate almost twice the global average, making climate change’s effects there far more intense and rapid than any other ecosystem in the world.

New data shows that in 2013 Arctic ice actually grew rather than retreating as climate change models had predicted.

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