From Miami to Shanghai: 3C of warming will leave world cities below sea level

From Miami to Shanghai: 3C of warming will leave world cities below sea level

SOURCE: The Guardian DATE: November 3, 2017 SNIP: Hundreds of millions of urban dwellers around the world face their cities being inundated by rising seawaters if latest UN warnings that the world is on course for 3C of global warming come true, according to a Guardian data analysis. Data from the Climate Central group of scientists analysed by Guardian journalists shows that 3C of global warming would ultimately lock in irreversible sea-level rises of perhaps two metres. Cities from Shanghai to Alexandria, and Rio to Osaka are among the worst affected. Miami would be inundated – as would the entire bottom third of the US state of Florida. The Guardian has found, however, that local preparations for a 3C world are as patchy as international efforts to prevent it from happening. At six of the coastal regions most likely to be affected, government planners are only slowly coming to grips with the enormity of the task ahead – and in some cases have done nothing. The momentum for change is currently too slow, according to the UN Environment Programme. In its annual emissions gap report, released on Tuesday, the international body said government commitments were only a third of what was needed. Non-state actors such as cities, companies and citizens can only partly fill this void, which leaves warming on course to rise to 3C or beyond by the end of this century, the report said. The UN’s environment chief, Erik Solheim, said progress in the year since the Paris agreement entered into force has been inadequate. “We still find ourselves in a situation where we are not doing...
The three-degree world: the cities that will be drowned by global warming

The three-degree world: the cities that will be drowned by global warming

SOURCE: The Guardian DATE: November 3, 2017 SNIP: When UN climate negotiators meet for summit talks this month, there will be a new figure on the table: 3C. Until now, global efforts such as the Paris climate agreement have tried to limit global warming to 2C above pre-industrial levels. However, with latest projections pointing to an increase of 3.2C by 2100, these goals seem to be slipping out of reach. “[We] still find ourselves in a situation where we are not doing nearly enough to save hundreds of millions of people from a miserable future,” said Erik Solheim, the UN environment chief, ahead of the upcoming Bonn conference. One of the biggest resulting threats to cities around the world is sea-level rise, caused by the expansion of water at higher temperatures and melting ice sheets on the north and south poles. Scientists at the non-profit organisation Climate Central estimate that 275 million people worldwide live in areas that will eventually be flooded at 3C of global...