International community

Heat pumps

170 countries agree to ban HFCs in landmark climate change agreement

The agreement was seven years in the making. HFCs became common after ozone-depleting chlorofluorocarbons (CFC) were phased out by the 1987 Montreal Protocol. Though the amount of HFCs released by humans into the atmosphere is small, HFCs are known as a “super greenhouse gas.” The chemical compound traps heat 1,000 times quicker than carbon dioxide.

Two elderly people walking

Global life expectancy and health improving

The Global Burden of Disease study, which shows the key drivers of ill health, disability and death in individual countries, found that by 2015, the world population had gained more than a decade of life expectancy since 1980 – rising to 69.0 years in men and 74.8 years in women.

Full Disk Earth

175 nations sign historic Paris climate deal on Earth Day

World leaders from 175 countries signed the historic Paris climate accord Friday, using Earth Day as a backdrop for the ceremonial inking of a long-fought deal that aims to slow the rise of harmful greenhouse gases.

“We are in a race against time.” U.N. secretary-General Ban Ki-moon told the gathering at the United Nations headquarters in New York. “The era of consumption without consequences is over.”

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