Drive to cut toxic pollution from power plants likely to have knock-on effects for greenhouse gas emissions
By John Upton in Cancun
A global effort to bridle toxic mercury pollution could also slow down the upward creep of mercury levels in thermometers.
Coal-burning power plants are major sources of mercury pollution, which sicken people and wildlife. Those same power plants are also leading carbon dioxide polluters, making them leading targets of efforts to curb global warming.
Itâ€™s this confluence of opportunities â€“ to reduce coal power plantsâ€™ mercury emissions while also cutting back on their carbon dioxide pollution â€“ that has captured the attention of the Global Environment Facility.
The GEF administers pledges from wealthy nations under five conventions that support environmental projects in poorer ones. Those environmental conventions include one that deals with mercury and other toxic forms of pollution and another that deals with climate change.
One thing that the convention does require, though, is for developed countries to â€śpromote and facilitateâ€ť the â€śdevelopment, transfer and diffusionâ€ť of technologies that help developing countries curb toxic pollution.
During meetings in Mexico this week, the GEF is considering how it will use $4.4 billion pledged during the past year by 30 wealthy countries â€“ money that will be spent on environmental programs in more than 140 poorer ones over four years.
Those pledges include more than $1 billion for climate change programs and more than $100 million under the mercury convention.
And one of the groupâ€™s newest priorities is figuring out how to sink funds into projects that simultaneously meet the objectives of multiple environmental conventions.
â€śFor example,â€ť the GEF Secretariat and World Bank state in a 243-page report prepared in advance of this weekâ€™s meetings, â€świth the GEF as the financial mechanism of the Mercury and the Climate Change Conventions, there are opportunities to explore co-benefits of carbon and mercury emissions reduction at coal-fired power plants.â€ť
Fernando Lugris, a Uruguayan ambassador who chaired the mercury conventionâ€™s negotiating committee, told RTCC that work is already underway to identify potential technologies that would need to be incorporated into new coal-burning power plants.
A technical committee has met once, he said, and it plans to meet three more times before producing its report.
â€śWith the technology that we have nowadays, if you have the most advanced technology to capture mercury, then youâ€™re going to be capturing many other things,â€ť such as carbon dioxide, Lugris said.
â€śSo weâ€™re going to contribute a lot to the climate change issue as well.â€ť