Invest for good 

Small changes to the way you shop and run your household could save your money – and help the environment, too.

Here are eight ways that lightening your impact on the planet can be good for your wallet.

Impact investing is set to continue to grow, as many investors are interested in making their money work for good, as well as for returns.

Research shows directing capital into investments that seek both attractive returns and a measurable positive environmental and societal impact could be a US$1 trillion ($1.3 trillion) business globally by 2020. This is largely driven by Millennials who want to make a difference in the world. Studies by Morgan Stanley have found that 18- to 34-year-olds are twice as likely to invest in a portfolio or individual companies if they seek positive environmental or social impacts.

OPINION: As an investor, it's not relevant whether you believe the science of climate change stacks up.

The weight of evidence is compelling, but set that aside. The world has changed, your investments are already starting to price in climate change.

Carbon credits are now currency in today's economy and therefore a company's carbon footprint is starting to become as important as its profits, for assessing a share's value.

High carbon companies will be forced to reorganise their activities, or they will be sold down by investors.

Those positioning their investment portfolios to recognise this should win, whether global warming actually happens or not.