A 'super-policy secretary' should be appointed to co-ordinate bureaus and departments to force rapid improvements in the environment, a legislator said yesterday. Citing the record air pollution levels over the past two days, Edward Ho Sing-tin of the Liberal Party attributed the slow progress in environmental improvements to a lack of financial resources. 'The problem of air pollution has plagued us for too long. Much more government action is necessary, both locally as well as through co-ordination with the mainland authorities. 'Nothing has passed the 'looking into' stage. The environment cannot wait. It is time for commitment and action,' he said during the Budget debate. Mr Ho said a strong institutional arrangement within the Government was needed to co-ordinate policy bureaus and departments whose work affects the environment. Among them are the Planning and Lands Bureau, the Environment and Food Bureau, the Works Bureau, the Housing Bureau and the Finance Bureau. 'Strong co-ordination and direction from the top must be backed by adequate financial resources so that action plans can be implemented as quickly as possible.' He said the slow progress in the conversion of diesel taxis to LPG showed the constraints on improving the environment. Democratic Party chairman Martin Lee Chu-ming rejected criticism that legislators had blocked proposals to improve the environment by banning diesel vehicles. He said such proposals had to be accompanied by measures to promote the switch to LPG taxis. Miriam Lau Kin-yee of the Liberal Party urged the Government to further extend concessions on diesel duty to discourage the trade in illicit fuel. She said the Environmental Protection Department had shifted responsibility for roadside pollution to the transport industry.