The study indicates that 67% of people who intend to use their ISA allowance ahead of the April deadline will consider transferring their money into a scheme that benefits the environment.

This has lead Co-operative Financial Services (CFS) to believe that an increase will occur in the 1% of assets currently managed in ethical investment funds.

Zack Hocking, head of savings and investments at CFS, said: As green ISAs allow investors to satisfy their hearts as well as their heads, we expect the deadline rush to be the start of a significant rise in the amount of money placed in ethical funds.

Contrary to this, the survey also revealed that a separate 72% hold no intentions to invest in an ISA in this current tax year, and therefore will lose the opportunity to take advantage of the tax-efficient benefits provided.