Xavier Querol, deputy director of the Institute of Environmental Assessment and Water Research, is an expert on pollution detection. In relation to the current high levels of air pollution affecting Barcelona, his position is clear: "Sometimes it seems that the weather is the culprit, but pollution is mainly caused by cars"

DAVID SEGARRA | FEBRUARY 11TH, 2011

Plants, through photosynthesis, capture CO2 from the atmosphere. But the decline of marine phytoplankton and the difficulties affecting terrestrial vegetation are causing a drop in the global capacity to absorb this greenhouse gas, a dynamic which will only aggravate global warming.

ÀNNIA MONREAL | NOVEMBER 4TH, 2010

In many islands they have no doubts about climate change. They sent a SOS in Copenhagen, but their petition has gone unheard.

18 January 2010

Zigor Aldama, Shanghai

The Copenhagen summit will go down in history without pain or glory. The world leaders didn't find the formulas to assure the agreements they awaited in regard to the emissions reduction percentages and regards on how to act to reduce them. However, despite the political disagreements in the Danish capital, the market of clean energy continues to flourish.

Cristina Jimenez | 14 January 2010