TIMELINE - How the world found out about global warming

Thu Nov 22, 2012 9:31pm IST

Passengers on a bus can be seen in front of a chimney for a coal-burning heating system as it billows smoke in central Beijing December 12, 2011. REUTERS/David Gray/Files

Passengers on a bus can be seen in front of a chimney for a coal-burning heating system as it billows smoke in central Beijing December 12, 2011.

Credit: Reuters/David Gray/Files

Related Topics

REUTERS - A U.N. conference in Qatar next week is the latest attempt to combat global warming after mounting evidence that human activity is disrupting the climate.

Here is a timeline of the road to action on global warming:

300 BC - Theophrastus, a student of the Greek philosopher Aristotle, documents that human activity can affect climate. He observes that drainage of marshes cools an area around Thessaly and that clearing of forests near Philippi warms the climate.

1896 - Sweden's Svante Arrhenius becomes the first to quantify carbon dioxide's role in keeping the planet warm. He later concluded that the burning of coal could cause a "noticeable increase" in carbon levels over centuries.

1957-58 - U.S. scientist Charles Keeling sets up stations to measure carbon dioxide concentrations in the atmosphere at the South Pole and at Mauna Loa, Hawaii. The measurements have shown a steady rise.

1988 - The United Nations sets up the Intergovernmental Panel on Climate Change (IPCC) to assess the scientific evidence.

1992 - World leaders agree the U.N. Framework Convention on Climate Change, which sets a non-binding goal of stabilising greenhouse gas emissions by 2000 at 1990 levels - a target not met overall.

1997 - The Kyoto Protocol is agreed in Japan; developed nations agree to cut their greenhouse gas emissions on average by at least 5 percent below 1990 levels by 2008-12. The United States stays out of the deal.

2007 - The IPCC says it is at least 90 percent certain that humans are to blame for most of the warming trend of the past 50 years. It also says signs that the planet is warming are "unequivocal".

2009 - A conference of 193 countries agrees to "take note" of a new Copenhagen Accord to fight climate change, after U.N. talks in Denmark. The accord is not legally binding and does not commit countries to agree a binding successor to the Kyoto Protocol when its first stage ends in 2012.

2011 - U.N. climate talks in Durban, South Africa, agree to negotiate a new accord by 2015 that is "applicable to all" and will come into force from 2020.

Sources: Reuters, Intergovernmental Panel on Climate Change, "Why We Disagree about Climate Change" by Mike Hulme, founding director of the Tyndall Centre.

(Reporting By Alister Doyle and David Cutler; Editing by Kevin Liffey)

FILED UNDER:
Comments (0)
This discussion is now closed. We welcome comments on our articles for a limited period after their publication.

  • Most Popular
  • Most Shared

Diplomacy

TOP SHOWCASE

WTO Customs Deal

WTO Customs Deal

U.S. says hopeful of WTO deal with India only hours before deadline  Full Article 

Tracking Monsoon

Tracking Monsoon

Monsoon turns patchy after revival   Full Article 

Gaza Violence

Gaza Violence

Netanyahu vows to complete Gaza tunnels destruction  Full Article 

Ebola Outbreak

Ebola Outbreak

Sierra Leone declares state of emergency over Ebola  Full Article 

India vs England

India vs England

Moeen puts India in a spin as England level series  Full Article 

Hacking USB Devices

Hacking USB Devices

Hackers can tap USB devices in new attacks, researcher warns  Full Article 

Reuters India Mobile

Reuters India Mobile

Get the latest news on the go. Visit Reuters India on your mobile device.  Full Coverage