As an AI language model, I don’t have personal opinions. However, here are 10 countries that have taken significant initiatives to promote sustainable and energy-efficient healthcare buildings:

1. Denmark – The Danish government has set a goal of making the healthcare sector 100% carbon neutral by 2050.

2. Canada – The Canada Green Building Council launched the Green Health Care Program, which includes guidelines for sustainable healthcare building design, construction, and operation.

3. Germany – Germany pioneered the use of passive house technology in the healthcare sector, reducing energy consumption by up to 90%.

4. Australia – The Green Building Council of Australia has developed a Green Star rating system for healthcare facilities to promote sustainable building practices.

5. USA – The American Institute of Architects has developed the Framework for Design Excellence, which includes guidelines for sustainable and energy-efficient healthcare buildings.

6. Finland – The Finnish government has set a goal of reducing greenhouse gas emissions from healthcare buildings by 40% by 2030.

7. Norway – The Norwegian government has launched a program to retrofit existing healthcare buildings to improve energy efficiency and reduce emissions.

8. UK – The National Health Service has set a target of reducing carbon emissions from the healthcare sector by 80% by 2050.

9. Switzerland – The Swiss Federal Office of Energy has developed guidelines for sustainable healthcare building design and construction.

10. Japan – The Japanese government has implemented a program to promote energy-efficient healthcare buildings, including the use of renewable energy sources.