In order to
reverse the trend of increasing emissions and achieving the Paris Agreement's
goal of a 1.5 degree increase in temperature, so-called negative emissions are
a must. This according to researchers at Chalmers, who have invited the world's
leading international experts on the subject to a conference on 14-17 June.
- It is not
possible underestimate the importance of negative emissions to meet the climate
goals, says Anders Lyngfelt, one of the conference organizers.
Negative emissions is achieved by collecting and storing more carbon dioxide than is emitted into the atmosphere. One way is called BECCS - Bioenergy with carbon capture and storage - the process of extracting bioenergy by burning biomass and then capturing and storing the carbon, thereby removing it from the atmosphere. Since it is the same carbon dioxide that the forest has previously captured through photosynthesis, the result is a net reduction of the carbon dioxide in the atmosphere, or minus emissions.
The first International Conference on Negative CO2 Emissions was held at Chalmers in 2018 and a sequel was planned for 2020, if it had not been for the covid-19 pandemic. But now it's finally time for a conference that will deal with new technologies for negative emissions, what the latest data models say about how the climate is developing, and what policy instruments are relevant to speed up the work with negative emissions.
How much more carbon dioxide can we emit?
It is the so-called carbon dioxide budget that indicates how much carbon dioxide we can emit without exceeding the climate goals. According to the best available calculations, the budget for the 1.5-degree goal is over in 2029, in just 7 years.
“If we are to meet this 1.5-degree target, all carbon dioxide released into the atmosphere after 2029 must be captured again, to acheive so-called negative emissions. We can't underestimate the importance of negative emissions in order to meet the climate goals, that is why Chalmers has gathered the world's leading researchers in the field for this conference, says Anders Lyngfelt, professor at Energy Technology at Chalmers.
The conference brings together more than 300 delegates and includes 140 scientific publications and more than 150 lectures, including 12 lectures on important aspects of negative emissions.