Global carbon emissions from fossil fuels are on the rise, with 2024 projected to be the hottest year on record. To limit global warming to 1.5°C, it is crucial to remove 7-9 billion tonnes of carbon dioxide from the atmosphere annually. The Intergovernmental Panel on Climate Change (IPCC) states that carbon dioxide removal technology is necessary to achieve global and national net zero targets since greenhouse gas emissions are not decreasing quickly enough.
Carbon dioxide removal technologies are divided into conventional (nature-based) and novel (new) approaches. Conventional methods include planting trees and boosting soil carbon levels, while novel approaches involve adding crushed rock to the ocean or farmland. These new technologies are essential to scale up carbon removal efforts. However, challenges such as high energy consumption and environmental impacts must be addressed.
Australia, with its vast land mass and renewable energy resources, has the potential to lead in carbon dioxide removal. The country needs to invest in infrastructure and institutions to support the development of a new industry focused on carbon removal. While it is important to prioritize emission reduction, carbon dioxide removal is essential to reaching net zero by 2050. By addressing the challenges associated with carbon removal and engaging with Indigenous communities, Australia can play a key role in mitigating climate change and preserving the planet for future generations.
Source
Photo credit theconversation.com