**Preface to "Towards Greenhouse Gas Mitigation: Novelty in Heterogeneous Catalysis"**

Climate change caused by greenhouse gas emissions has encouraged the scientific community to find ways to mitigate these environmentally detrimental gases. The conversion of major greenhouse gases, including methane and carbon dioxide, with the utilization of catalysts in general and heterogeneous catalysts in particular has made significant progress in recent decades. The wider scientific community of MDPI can benefit from this Special Issue in terms of understanding the basic research involved in reaction engineering and catalysis. Finally, I, as the gues<sup>t</sup> editor of this Special Issue, would like to extend my appreciation to MDPI and the Energies team for providing this exciting opportunity of learning and growth as well as the editorial staff, especially Ms. Marija Belic, for their continuous support and consideration. I must acknowledge the fact that such interactions are an excellent platform for young researchers for their scientific growth and I hope the readers enjoy this piece of research.

> **Wasim Ullah Khan** *Editor*
