Hungary expects to take at least a year and tens of millions of dollars to clean up what the country's environment minister describes as its worst chemical accident. (BBC)
Hungary opens a criminal investigation into the incident. (The Telegraph)
China's climate negotiatorXie Zhenhua states that the country's voluntary efforts supported by its own resources and technologies only accept "non-invasive" international consultation and analysis at the UNFCCC meeting in Tianjin, China. (China Daily)