Dear Colleagues,

Observations show that the atmospheric greenhouse gas (GHG) burden surges, contrary to pathways compatible with the Paris Agreement. Emergency actions are, thus, required to bring GHG back to a climate-neutral pathway. In recent years, substantial advances have been made toward greenhouse gas monitoring from ground, air and space. Particularly, very high spatial, temporal or spectral resolution measurements can fill important observational gaps in the identification and quantification of greenhouse gas emissions. Subsequent numerical simulations constrained by emerging measurements would help re-think the greenhouse gas burden from urban and regional to global scales. Regarding anthropogenic sources, such as power plants, coal mines, landfills and other fossil fuel industries, emission reduction measures are facilitated by technical advances at an ever-increasing speed. By comparison, efforts to reduce emissions from biogenic sources, such as wetlands, have received less attention but are becoming more feasible. It should be noted that emerging advances generally fail in sound uncertainty assessments and large-scope applications, which should, thus, be verified in abundant real cases. Moreover, there is no single magic bullet, but promoting a wide array of monitoring, measures and policies for emission reductions could significantly mitigate the global greenhouse gas burden in a cost-effective way and thereby, approach the climate-neutral aim.

Dr. Pengfei Li
Dr. Liqiang Wang
Dr. Jingzhao Lu
Guest Editors

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• measurements of greenhouse gas emissions from ground, air and space
• estimates of greenhouse gas emission burdens from urban and regional to global scales
• cost-effective measures for greenhouse gas emission mitigation
• evidence for abnormal greenhouse gas emissions
• contributions of anthropogenic/biogenic sources to greenhouse gas burdens

Planned paper:

- Tentative title : A study on greenhouse gas(PFCs) reduction in plasma scrubbers to realize carbon neutrality of semiconductors and displays

- Main author list : Yujin Hwang, Jong-moon Jeong, Bong Jae Lee

- Tentative submitting date : June 30