Dear Colleagues,

Over the last decades, significant growth in the anthropogenic emission of different greenhouse gases (i.e., CO₂, H₂S, NO₂ and SO₂) has threatened the human’s well-beings due to their serious detriments on environment like global warming, aid rain and climate change. Therefore, finding/development of more efficient techniques to reduce their release into the atmosphere is of great importance.

The scope of the ACE journal covers research in chemistry, biology, materials, and allied engineering fields. In this Special Issue, research/review articles focused on the following subjects are highly welcomed:

· CFD simulation of membrane processes for mitigating CO₂ emissions

· Hollow fiber membrane contactors for greenhouse gases separation

· Application of alkanolamine, ionic and amino acid solutions for CO₂ emissions

· The roles of artificial intelligence in the separation of greenhouse gases

· Efficiency of nanofluids for greenhouse gases separation