The Paris Agreement of 2015 was ambitious in terms of its targeted emissions cuts, (although the ends more than justify the means) and was unilaterally endowed with support by nations globally. Even then though, it dawned on most that it required an unprecedented wave of private capital to be mobilised to spearhead the initiatives, both to drive innovation and then to be able to commercialise affordably at scale. However, the ‘Big Five’, those sectors of the economy which do the heaviest lifting in respect of the ‘emissions burden’ – manufacturing, electricity, agriculture, transportation and infrastructure, now all have demonstrably established clean climate technologies, which are no longer theoretical, but have transitioned into a commercial reality.