Energy from increasingly-competitive renewable sources such as wind and solar has quadrupled globally in just a decade, the United Nations said Thursday, but insatiable demand saw power sector emissions rise 10 per cent.
Worldwide investment in renewables since 2009 is on course to hit USD 2.6 trillion (2.35 trillion euros) by the end of the year, largely driven by "spectacular" falls in the price of solar panels, the UN's annual assessment of green energy trends said.
The world's renewable capacity -- power generated from solar, wind, geothermal and biomass -- rose from 414 gigawatts in 2009 to 1650 gigawatts this year, and renewables now account for 12.9 per cent of all electricity generated on Earth.
Solar accounted for the largest single share of the more than 2300 GW of additional power capacity installed globally in the past decade, outpacing fossil fuels such as coal and gas.
Yet despite the surge in carbon-free solar and wind, emissions from power have continued to rise, with the world belching out more manmade greenhouse gases in 2018 than any year on record.
Inger Andersen, executive director of the UN Environment Programme, hailed Thursday what she termed a "decade of incredible growth in renewables".
"This shows that the transition of the energy sector is on its way," Francoise d'Estais, head of the UNEP finance unit's Energy and Climate Branch, told AFP.
"It's still not rapid enough for the world to meet both climate and development goals."
Certainly that was the argument from the fossil fuel side."
"When I'm on a diet I can't just count the salads I'm eating but also the chocolate cakes. So it's a case of trying to substitute fossil fuels out of the market and I see that as quite a challenge."
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