The bill includes a statewide emissions reduction target of net zero emissions by June 30, 2030.

It will establish a requirement for a climate change action plan to be developed every five years and for a statewide climate change risk assessment to be undertaken every five years.

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The bill has a requirement for sector-based emissions reduction and resilience plans to be prepared with industry and updated at least every five years.

In his second reading speech, Environment Minister Roger Jaensch said Tasmania had recorded net zero emissions over the past seven years.

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"But modelling shows that, as our economy and population grow, and the risk of severe bushfires increases, we will need to do more to reduce emissions across all sectors to maintain our net zero emissions status," he said.

Labor leader Rebecca White said the party supported the bill, but it would move a number of amendments during debate on it.

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She said the amendments to be moved would set up clear plans for a just transition for workers and communities as sectors decarbonised.

Ms White said there needed to be independent process to measure progress of the climate change action plan and a requirement that relevant unions be consulted when a climate action plan was in development.

"There are improvements that need to be made this bill to ensure that vulnerable people do not bear a disproportionate impact of emissions reduction action," she said.

Greens environment spokeswoman Rosalie Woodruff said sector targets needed to be legislated, highlighting rising emissions in transport and agriculture.

She said the party would move an amendment for the government to have one year to produce a climate action plan.

Dr Woodruff said the 2030 net zero emissions target lacked ambition.

"Setting a target of seven years time in a global crisis is actually offensive to anybody who understands the reality of the situation we're in," she said.

The bill will continue to be debated on Thursday.

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