WorldCitizen.net

September 27, 2009

United Nations On Global Warming / Climate Change

The United Nations says the outlook on climate change is worse than previously thought.

Press Conference on Outcome of Secretary-General’s Climate Change Summit

Yesterday’s Climate Summit at United Nations Headquarters had achieved the Secretary-General’s goal of mobilizing political will at the highest level and focusing the attention of Heads of State and Government on the urgent need for action, Robert Orr, Assistant Secretary-General for Policy Planning, said today.

Speaking at a press conference on the outcome of the Summit, in which a record 163 countries participated at the senior level, including 101 Heads of State and Government, Mr. Orr said a subtext of the day was that “leader after leader” had acknowledged that climate change was a “leaders’ issue” and that leaders had to make decisions, which was a shift in overall recognition of whose issue it was.

The event had also seen a serious and sustained dialogue between the major world economies and the most vulnerable ones, another goal of the Secretary-General, he said. One of the most striking outcomes was that many had recognized the overall goal of negotiations to limit the global average temperature rise to a maximum of 2? Celsius. Nobody had cited a higher figure, while some of the most vulnerable countries had argued for a maximum rise of 1.5? C.

He said that among important announcements had been Japan’s confirmation that it would pursue a 25 per cent reduction against 1990 emission levels by 2020, and that it would seek to create a national carbon market linked to an international one. The European Union had announced support for a “fast-track adaptation funding facility”, for which it would provide €5 billion to €7 billion between 2010 and 2012. China had announced what it would be prepared to do in the context of an international agreement, in addition to the “robust” work it was already doing, while the President of the Maldives had announced his intention to make the island nation carbon-neutral by 2020 and to take on binding emission targets under certain conditions.

One of the biggest outcomes was that financing ?? the sine qua non for achieving a final deal ?? had finally taken centre stage, he continued, noting that many leaders had rallied around a proposal for supporting $100 billion per annum over the next decade. The Secretary-General had held a dinner with 23 leaders, bringing together those from the most vulnerable countries with those of the largest economies. To a striking extent they had agreed that they must and could reach agreement at the December Copenhagen Climate Change Conference.

Janos Pasztor, Director of the Secretary-General’s Climate Change Support Team, added that leaders at the dinner had expressed a very strong willingness to break the deadlock of trust which until now had blocked agreement on core issues. They had also discussed their willingness to do much more than they had been willing to agree upon in the context of the negotiations. That was an “optimistic sign” that agreement in Copenhagen would be possible. Leaders at the dinner had also expressed strong interest in meeting again before Copenhagen, as needed, and the Secretary-General was prepared to convene such a meeting, if desired. The next stop would be Bangkok, where a 10-day round of United Nations-sponsored negotiations of the Framework Convention on Climate Change would continue on Monday in preparation for Copenhagen.

Asked whether the divide over whether 2? C or 1.5? C should be the limit on the global average temperature rise would be a stumbling block, Mr. Orr said that, on the contrary, the range had now become clear for the first time, and the difference would have to be sorted out in negotiations.

In answer to another question, he said it was premature to talk about the binding or non-binding character of a deal in Copenhagen. It had become clear yesterday that everyone wanted a deal, and the nature of such a deal must be determined.

Asked about the domestic legislative processes of a deal, the Assistant Secretary-General said most measures on treaties of an international nature had to go through such processes, but it was important that the leaders had recognized that it was a political issue rather than a technical one. Many leaders had recognized that they must come to an international agreement in order to deliver at home. Although there might be some pain domestically, there was also some gain to be made. While the legislative processes might take time, leaders had now recognized that it was important to begin work now on what must be done.

Mr. Pasztor added that, while it was a political project requiring recourse to domestic legislation, it also called for considerable domestic political work. Very often it was a question of the leaders making the political commitment to carry out that work.

Responding to another question, Mr. Orr said yesterday’s event marked the first time that financing had been recognized as a central issue. Now that some numbers had “hit the table”, discussion had become more concrete. A significant development was that nearly all speakers had stressed that financing should consist of both public and private funds, and that it should be in addition to official development assistance (ODA).

He cautioned that there was no clear outcome on whether China or other developing countries would participate in such a financial framework, or if developing countries would pay into the framework. However, some interesting ideas had been tabled, including the notion that only the least developed countries would not be expected to contribute, or that all developing countries would see a net positive outcome from the scheme.

Mr. Pasztor added that whether contributions should be determined in accordance with percentage of gross domestic product or national carbon footprint would have to be sorted out at the level of finance ministers. However, the principle was that they had to involve a mixture of public and private financing.

Asked about technical support for developing countries, he said that matter was partly linked to money and partly to intellectual property regimes. There were indications that some technologies could be made available without going through the open-market system.

Responding to a question about corporate accountability, specifically whether a company participating in the United Nations Leadership Forum on Climate Change could claim an endorsement by the Organization, Mr. Orr said participation by any company did not entail such an endorsement.

September 21, 2009

Trouble: World’s River Deltas Sinking

Boulder, Colorado — A new study led by the University of Colorado at Boulder indicates most of the world’s low-lying river deltas are sinking from human activity, making them increasingly vulnerable to flooding from rivers and ocean storms and putting tens of millions of people at risk.

While the 2007 Intergovernmental Panel on Climate Change report concluded many river deltas are at risk from sea level rise, the new study indicates other human factors are causing deltas to sink significantly. The researchers concluded the sinking of deltas from Asia and India to the Americas is exacerbated by the upstream trapping of sediments by reservoirs and dams, man-made channels and levees that whisk sediment into the oceans beyond coastal floodplains, and the accelerated compacting of floodplain sediment caused by the extraction of groundwater and natural gas.

The study concluded that 24 out of the world’s 33 major deltas are sinking and that 85 percent experienced severe flooding in recent years, resulting in the temporary submergence of roughly 100,000 square miles of land. About 500 million people in the world live on river deltas.

Published in the Sept. 20 issue of Nature Geoscience, the study was led by CU-Boulder Professor James Syvitski, who is directing a $4.2 million effort funded by the National Science Foundation to model large-scale global processes on Earth like erosion and flooding. Known as the Community Surface Dynamic Modeling System, or CSDMS, the effort involves hundreds of scientists from dozens of federal labs and universities around the nation.

The Nature Geoscience authors predict that global delta flooding could increase by 50 percent under current projections of about 18 inches in sea level rise by the end of the century as forecast by the 2007 Intergovernmental Panel on Climate Change report. The flooding will increase even more if the capture of sediments upstream from deltas by reservoirs and other water diversion projects persists and prevents the growth and buffering of the deltas, according to the study.

“We argue that the world’s low-lying deltas are increasingly vulnerable to flooding, either from their feeding rivers or from ocean storms,” said CU-Boulder Research Associate Albert Kettner, a co-author on the study at CU-Boulder’s Institute of Arctic and Alpine Research and member of the CSDMS team. “This study shows there are a host of human-induced factors that already cause deltas to sink much more rapidly than could be explained by sea level alone.”

Other study co-authors include CU-Boulder’s Irina Overeem, Eric Hutton and Mark Hannon, G. Robert Brakenridge of Dartmouth College, John Day of Louisiana State University, Charles Vorosmarty of City College of New York, Yoshiki Saito of the Geological Survey of Japan, Liviu Giosan of the Woods Hole Oceanographic Institute and Robert Nichols of the University of Southampton in England.

The team used satellite data from NASA’s Shuttle Radar Topography Mission, which carried a bevy of radar instruments that swept more than 80 percent of Earth’s surface during a 12-day mission of the space shuttle Endeavour in 2000. The researchers compared the SRTM data with historical maps published between 1760 and 1922.

“Every year, about 10 million people are being affected by storm surges,” said CU-Boulder’s Overeem, also an INSTAAR researcher and CSDMS scientist. “Hurricane Katrina may be the best example that stands out in the United States, but flooding in the Asian deltas of Irrawaddy in Myanmar and the Ganges-Brahmaputra in India and Bangladesh have recently claimed thousands of lives as well.”

The researchers predict that similar disasters could potentially occur in the Pearl River delta in China and the Mekong River delta in Vietnam, where thousands of square miles are below sea level and the regions are hit by periodic typhoons.

“Although humans have largely mastered the everyday behaviour of lowland rivers, they seem less able to deal with the fury of storm surges that can temporarily raise sea level by three to 10 meters (10 to 33 feet),” wrote the study authors. “It remains alarming how often deltas flood, whether from land or from sea, and the trend seems to be worsening.”

“We are interested in how landscapes and seascapes change over time, and how materials like water, sediments and nutrients are transported from one place to another,” said Syvitski a geological sciences professor at CU-Boulder. “The CSDMS effort will give us a better understanding of Earth and allow us to make better predictions about areas at risk to phenomena like deforestation, forest fires, land-use changes and the impacts of climate change.”

For more information on INSTAAR visit instaar.colorado.edu/index.html. For more information on CSDMS visit csdms.colorado.edu/wiki/Main_Page.

Powered by WordPress