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:: Global warming can be limited to 2 degrees with major technological and institutional change: IPCC report

Many pathways to substantial greenhouse-gas reductions are available at relatively little cost, a landmark report by the Intergovernmental Panel on Climate Change (IPCC) shows. Among the options put on the table there are the use of bioenergy combined with carbon capture and storage, and comprehensive pricing of CO2 emissions. The report's team of authors has been led by Ottmar Edenhofer, vice-director of the Potsdam Institute for Climate Impact Research.

:: The Climate Paradox: Do We Need to Phase Out Coal?

While we are in the midst of a steadily progressing Energiewende in Germany, world climate scientists from the renowned climate science body IPCC (Intergovernmental Panel on Climate Change) are releasing their newest findings these days in Berlin. The results presented in Yokohama some weeks ago showed the world that human induced climate change is not only real and happening, but impacts are and evermore will be worse than expected. By Katrin Heeren

:: Did Europe sacrifice its climate leadership role to backwards-oriented money making business?

High level climate and energy experts from politics and industry discussed the future European energy policy intensely during the Second European Energy Congress on March 31st and April 1st 2014 in Brussels, organised by the Süddeutscher Verlag Veranstaltungen GmbH. By Katrin Heeren

:: What is the strongest driving force for off-grid electrification: light, communication or entertainment?

While NGOs and social businesses are still trying to drive ahead the solar lighting of households in off-grid regions with the cheapest possible entry-level products, the same households easily buy a mobile phone from the local market. And that, despite they actually often can’t afford a mobile phone according to the income statistics. How does it happen? Why does the spread of mobile phones explode while solar lighting in comparison spreads with much more difficulty? By Harald Schützeichel

:: 7 million premature deaths annually linked to air pollution

In new estimates released today, WHO reports that in 2012 around 7 million people died - one in eight of total global deaths – as a result of air pollution exposure. This finding more than doubles previous estimates and confirms that air pollution is now the world’s largest single environmental health risk. Reducing air pollution could save millions of lives.

:: WMO Annual Climate Statement Highlights Extreme Events

The year 2013 once again demonstrated the dramatic impact of droughts, heat waves, floods and tropical cyclones on people and property in all parts of the planet, according to the World Meteorological Organization’s Annual Statement on the Status of the Climate. The report confirmed that 2013 tied with 2007 as the sixth warmest on record, continuing the long-term global warming trend. It provided a snapshot of regional and national temperatures and extreme events as well as details of ice cover, ocean warming, sea level rise and greenhouse gas concentrations – all inter-related and consistent indicators of our changing climate.

:: Don't bet on coal and oil growth

A mind-boggling sum of about $800 for each person on the planet is invested into fossil fuel companies through the global capital markets alone. That’s roughly 10% of the total capital invested in listed companies. The amount of money invested into the 200 biggest fossil fuel companies through financial markets is estimated at 5.5 trillion dollars. This should be an impressive amount of money for anyone reading this. Blogpost by Kumi Naidoo

:: Global food markets: Climate impacts would be more costly than bioenergy effects

Ambitious greenhouse-gas mitigation consistent with the 2 degrees target is likely to require substantial amounts of bioenergy as part of the future energy mix. Though this does not come without risks, global food markets would be affected much more by unmitigated climate change than by an increased bioenergy demand, a study led by scientists from the Potsdam Institute for Climate Impact Research (PIK) now finds. Agricultural prices could be about 25 percent higher in 2050 through direct climate impacts on crop yields in comparison to a reference scenario without climate change. By way of contrast, a high bioenergy demand as part of a scenario with ambitious mitigation appears to raise prices only about 5 percent.

:: Not Just the Koch Brothers: New Drexel Study Reveals Funders Behind the Climate Change Denial Effort

A new study conducted by Drexel University environmental sociologist Robert J. Brulle, PhD, exposes the organizational underpinnings and funding behind the powerful climate change countermovement. This study marks the first peer-reviewed, comprehensive analysis ever conducted of the sources of funding that maintain the denial effort.

:: No Undo for Climate Change: Potential Pitfalls of Geoengineering

Global warming alters the intensity of the water cycle, and the magnitude of these changes has now been explained by scientists of the Max-Planck-Institute for Biogeochemistry in Jena, Germany. Using a simple physical approach, the study explains how the water cycle reacts to surface warming and that it responds differently to heating by sunlight or by a stronger atmospheric greenhouse effect. This has important consequences for potential interventions that aim to undo global warming by reflecting sunlight by geoengineering: While such interventions may cool down temperatures, simultaneous changes in the water cycle and the atmosphere cannot be compensated at the same time.

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