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Since it was first signed more than five years ago, the Paris Agreement has set the bar for the global effort to reduce greenhouse gas emissions, with more than 70 countries taking on ambitious nationally determined contributions ...

Investments to address climate change are good business

An internationally respected group of scientists have urgently called on world leaders to accelerate efforts to tackle climate change. Almost every aspect of the planet's environment and ecology is undergoing changes in response ...

To save life on Earth, here's the $100 billion-a-year solution

There have been five mass extinctions in the history of the Earth. But in the 21st century, scientists now estimate that society must urgently come to grips this coming decade to stop the very first human-made biodiversity ...

Carbon-negative power generation for China

If we're going to limit global temperature increases to 2 degrees above pre-industrial levels, as laid out in the Paris Climate Agreement, it's going to take a lot more than a transition to carbon-neutral energy sources such ...

Caffau's star is a dwarf, Gaia DR2 confirms

Caffau's star, the most metal-poor object known to date and one of the oldest stars in the Milky Way galaxy, turns out to be a dwarf star, according to an analysis of new measurements provided by Gaia Data Release 2 (DR2). ...

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Paris

Coordinates: 48°51′24″N 2°21′03″E / 48.856667°N 2.350833°E / 48.856667; 2.350833

Paris (pronounced /ˈpærɪs/; French: [paʁi] ( listen)) is the capital and largest city in France, situated on the river Seine, in northern France, at the heart of the Île-de-France region (or Paris Region, French: Région parisienne). The city of Paris, within its administrative limits (the 20 arrondissements) largely unchanged since 1860, has an estimated population of 2,211,297 (January 2008), but the Paris metropolitan area has a population of 12,089,098, (January 2008), and is one of the most populated metropolitan areas in Europe. Paris was the largest city in the Western world for about 1,000 years, prior to the 19th century, and the largest in the entire world between the 16th and 19th centuries.

Paris is today one of the world's leading business and cultural centres, and its influences in politics, education, entertainment, media, fashion, science, and the arts all contribute to its status as one of the world's major global cities. It hosts the headquarters of many international organizations such as UNESCO, the OECD, the International Chamber of Commerce or the informal Paris Club. Paris is considered as one of the greenest and most liveable cities in Europe. It is also one of the most expensive.

Paris and the Paris Region, with €552.1 billion (US$768.9 billion) in 2009, produce more than a quarter of the gross domestic product of France. According to 2008 estimates, the Paris agglomeration is Europe's biggest or second biggest city economy and the sixth largest in the world. The Paris Region hosts the headquarters of 33 of the Fortune Global 500 companies, the highest such concentration in Europe, hosted in several business districts, notably La Défense, the largest dedicated business district in Europe. The Paris region has the highest concentration of higher education students in the European Union, is the first in Europe in terms of research and development capability and expenditure and is considered as one of the best cities in the world for innovation. With about 42 million tourists annually in the city and its suburbs, Paris is the most visited city in the world. The city and its region contain 3,800 historical monuments and four UNESCO World Heritage Sites.

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