據能源世界網7月2日倫敦報道，國際能源署(IEA)周四表示，如果不大幅加快清潔能源創新，到2050年實現碳排放凈零的全球目標將無法實現。

2015年《巴黎協定》設定了一個目標，在本世紀下半葉遏制全球變暖并達到凈零排放。

IEA在一份特別報告中分析了400多種清潔能源技術，并表示盡管現在使用的可再生技術可以實現大量的減排，但僅靠它們本身還不夠。

該報告發現，在航運、卡車運輸、航空和重工業等行業，目前幾乎沒有技術可以將排放降至零。

IEA執行董事Fatih Birol對路透表示：“如果不對運輸部門進行脫碳，就不可能實現氣候目標。

他補充道，大約一半的減排需要清潔技術的重大創新。無論我們對可再生能源做什么，僅靠它們是不夠的，到2050年實現零碳排放幾乎是不可能的。

需要創新的四項最關鍵的清潔技術是電池技術、碳捕獲和儲存、生物能源和低碳氫，這些技術目前大多處于發展階段和/或成本高昂。

由于導致能源需求大幅下滑，預計今年全球二氧化碳排放量將比2019年降低8%，為2010年以來的最低水平。但除非采取行動，否則隨著經濟復蘇，二氧化碳排放量可能會反彈。

IEA表示，盡管目前用于將新技術引入市場的資金可能會減少，但一些國家正在制定的經濟復蘇計劃為政府提供了支持清潔能源技術進步的機會。

郝芬 譯自 能源世界網

原文如下：

Huge acceleration of clean energy innovation needed to meet net zero target: IEA

A global goal to achieve net zero carbon emissions by 2050 will not be met without a huge acceleration in clean energy innovation, the International Energy Agency (IEA) said on Thursday.

The 2015 Paris Agreement set a target to curb global warming and reach net zero emissions in the second half of the century.

In a special report, the IEA analysed more than 400 clean energy technologies and said that although renewable technologies in use now can deliver a large amount of emissions reductions, they are not enough on their own.

It found that there are currently few technologies available for reducing emissions to zero in sectors such as shipping, trucking, aviation and heavy industries.

"Without decarbonising the transport sector there is no chance whatsoever of meeting climate targets," IEA executive director Fatih Birol told Reuters.

"Around half of emissions reductions that are needed still require major innovation of clean technologies. Whatever we do with renewables will not be enough on their own and it will be all but impossible to meet net zero by 2050," he added.

The four most critical clean technologies needing innovation are battery technologies, carbon capture and storage, bioenergy and low-carbon hydrogen, which are currently mostly in the development phase and/or costly.

Global CO2 emissions are expected to be 8% lower this year than in 2019 - their lowest level since 2010 - as energy demand has slumped due to the coronavirus pandemic, but they are likely to rebound as economies recover unless action is taken.

Although there are likely to be less funds available for bringing new technologies to market right now, economic recovery plans being developed by a range of countries provide an opportunity for governments to support clean energy technology progress, the IEA said.