42 Engineering services in the field of environmental technology; engineering services in the field of reducing carbon dioxide emissions; designing of machines, apparatus, instruments [including their parts] or systems composed of such machines, apparatus and instruments; consultancy in the design and development of computer hardware; industrial design; computer software design, computer programming, and maintenance of computer software; design and writing of computer software; research and development of computer software; programming of operating software for accessing and using a cloud computing network; design of computer software for detecting and measuring carbon dioxide; providing technological advice relating to computers, automobiles and industrial machines; research in the field of building construction or city planning; measurement of carbon dioxide and other greenhouse gas emissions; verification of carbon dioxide and other greenhouse gas emission offsets; verification of carbon offsetting; research and development of technology in the field of carbon dioxide (CO2) mitigation; technical research in the field of carbon offsetting; testing or research in the field of machines, apparatus and instruments; rental of measuring apparatus; rental of carbon dioxide measuring apparatus; rental of computers; rental of laboratory apparatus and instruments; providing computer programs on data networks; rental of operating software for accessing and using a cloud computing network; providing online non-downloadable cloud computing software; providing online non-downloadable computer software for detecting and measuring carbon dioxide