Manitoba Premier Gary Doer is in Adelaide, Australia, on Tuesday as head of a delegation of scientists and business leaders from the province who are interested in renewable energy and climate change.

Doer is among the keynote speakers at the International Solar Cities Congress, where more than 800 delegates from 36 countries will discuss ways to make cities more sustainable.

Conference organizers, quoting Business Week magazine, are billing Doer as "one of the world's Top 20 leaders on climate change and clean energy development," saying he has pushed Manitoba toward renewable energies such as hydro, wind, geothermal, ethanol and biodiesel.

He hasn't released a text of his speech, but Doer is expected to focus on climate change at the conference featuring star speaker Robert F. Kennedy Jr., one of the most popular personalities in the environmental movement.

The Manitoba premier came to Adelaide following a trade and cultural mission to the Philippines earlier this month.

Doer and about 25 scientists and business leaders will be taking part in a series of joint meetings with Australian officials and various state premiers. He is also expected to sign an agreement with the State of South Australia concerning biotechnology.

Doer's office said the trip is part of ongoing efforts by the state and the province to promote and develop mutual interests in sustainable energy.