Carbon capture and utilization (CCU) refers to technologies and processes that capture carbon dioxide (CO2) from industrial sources or the atmosphere and use it for a variety of purposes. There are several reasons why CCU is important:

1. Climate change: Carbon dioxide is a major greenhouse gas that contributes to global warming and climate change. Capturing and utilizing carbon dioxide can help reduce its levels in the atmosphere and mitigate the impacts of climate change.
2. Sustainable energy: Many CCU technologies involve using carbon dioxide to produce renewable energy or feedstocks for chemical production. This can help shift away from fossil fuel-based energy sources and towards more sustainable alternatives.
3. Economic benefits: CCU can create new economic opportunities and industries, such as those involved in the production of renewable energy or sustainable chemicals. It can also reduce the cost of reducing greenhouse gas emissions by using captured carbon dioxide as a feedstock rather than reducing emissions at the source.
4. Environmental benefits: CCU can help reduce air pollution and the negative impacts of fossil fuel extraction and use on land and water resources. It can also help sequester carbon dioxide in long-term storage, such as underground geological formations.