42 Monitoring of carbon emissions for scientific research purposes; Data exchange being scientific research related to reduction of greenhouse gas emissions; Data exchange being scientific research related to reduction of carbon emissions; Measurement and verification of carbon dioxide and other greenhouse gas emission offsets; Management of carbon emissions information being scientific research; Management of carbon emissions data being scientific research; Platform as a service (PaaS) featuring block chain computer software platforms for enabling companies to trace and calculate carbon emissions; Platform as a service (PaaS) featuring an emissions management computer software platform for carbon credit tracking, tracing, calculating, trading, and verification; Platform as a service (PaaS) featuring block chain computer software platforms for enabling companies to trace, track, calculate, trade, and verify carbon emissions for identifying and implementing decarbonization opportunities; Platform as a service (PaaS) featuring block chain computer software platforms for capturing, storing and managing data and information about supply chains; Platform as a service (PaaS) featuring a computer software platform for generating, trading, sending, receiving, storing and safeguarding crypto currency tokens using block chain technology; Software as a service (SaaS) services featuring block chain application software for enabling companies to trace and calculate carbon emissions; Software as a service (SaaS) services featuring emissions management software for carbon credit tracking, tracing, calculating, trading, and verification; Software as a service (SaaS) services featuring block chain application software for enabling companies to trace, track, calculate, trade, and verify carbon emissions for identifying and implementing decarbonization opportunities; Software as a service (SaaS) services featuring block chain application software for capturing, storing and managing data and information about supply chains; Software as a service (SaaS) services featuring software for generating, trading, sending, receiving, storing and safeguarding crypto currency tokens using block chain technology; Providing temporary use of online non-downloadable block chain application software for enabling companies to trace and calculate carbon emissions; Providing temporary use of online non-downloadable emissions management software for carbon credit tracking, tracing, calculating, trading, and verification; Providing temporary use of online non-downloadable block chain application software for enabling companies to trace, track, calculate, trade, and verify carbon emissions for identifying and implementing decarbonization opportunities; Providing temporary use of online non-downloadable block chain application software for capturing, storing and managing data and information about supply chains; Providing temporary use of online non-downloadable software for generating, trading, sending, receiving, storing and safeguarding crypto currency tokens using block chain technology; Providing information regarding research in the reduction of carbon emissions contained in a registry of carbon dioxide credits or offsets reflecting atmospheric carbon dioxide reductions from tree planting and preservation in metropolitan areas; providing information regarding research in the reduction of carbon emissions contained within registries of metropolitan tree planting and preservation projects that reflect atmospheric carbon dioxide reductions