Is the SRI riskier than other investments?

No. SRI label investments have the same share of risk as any other investment with similar financial products (stock-options, bonds, money market securities). The financial productivity of an SRI investment -as for any investment- is subjected to the evolution of financial markets.

However, investing in an SRI labelled fund is an efficient way for companies to foresee potential risks. Indeed, by respecting the ESM criteria those companies are protecting themselves from risks which could damage their financial health later on. In the long term, those companies bear less risk than other companies.

All in all, it is your call to define the balance between risk and profitability according to your interests and your project. You could really benefit from the help of your financial adviser.