Negative-emissions technology portfolios to meet the 1.5 °C target
article
Our carbon-intensive economy has led to an average temperature rise of 1 ◦C since pre-industrial times. As a consequence, the world has seen increasing droughts, significant shrinking of the polar ice caps, and steady sealevel rise. To stall these issues’ worsening further, we must limit global warming to 1.5 ◦C. In addition to the economy’s decarbonization, this endeavour requires the use of negative-emissions technologies (NETs) that remove the main greenhouse gas, carbon dioxide, from the atmosphere. While techno-economic feasibility alone has driven the definition of negative-emissions solutions, NETs’ diverse, far-reaching implications demand a more holistic assessment. Here, we present a comprehensive framework, integrating NETs’ critical performance aspects of feasibility, effectiveness, and side impacts, to define the optimal technology mix within realistic outlooks. The resulting technology portfolios provide a useful new benchmark to compare carbon avoidance and removal measures and deliberately choose the best path to solve the climate emergency.
Topics
TNO Identifier
957570
ISSN
09593780
Source
Global Environmental Change, 67(102238)
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