People have been talking about curtailing carbon emissions for 50 years, but they haven't been serious about it. Being serious doesn't look like saying "oh shoot, we said we will... try to keep emissions down, but we didn't... even try; sorry...". Being serous looks like "stop now, or we will eminent domain your data centre from under you via an emergency court order, or failing that, bomb it to rubble (because if we don't, some other signatory of the treaty will bomb you for us)".
People have been talking about curtailing carbon emissions for 50 years, but they haven't been serious about it. Being serious doesn't look like saying "oh shoot, we said we will... try to keep emissions down, but we didn't... even try; sorry...". Being serous looks like "stop now, or we will eminent domain your data centre from under you via an emergency court order, or failing that, bomb it to rubble (because if we don't, some other signatory of the treaty will bomb you for us)".