Former British Prime Minister Tony Blair is joining a Silicon Valley business as a senior adviser on environmental issues.

Khosla Ventures, started by Sun Microsystems co-founder Vinod Khosla, has invested in companies pursuing alternative fuel strategies and other environmentally minded technologies. They include Cogenra Solar, which wants to multiply the energy efficiency of solar cells, and Calera, which is converting man-made greenhouse gas emissions into sustainable building products.

Khosla said Blair will advise the companies it invests in on how to meet their business goals.

Said Blair: “I’m more and more convinced that unless we connect and align the public policy space with the creativity and ingenuity and innovation of the entrepreneurs, we’re not going to resolve this issue.”

It wasn’t disclosed how much Blair would be paid in this new advisory role.