SB6453 – Adds addressing climate change to goals for regional planning processes.
Prime Sponsor – Senator Salomon (D; 32nd District; Shoreline)
Current status – Had a hearing in the Senate Committee on Local Government  January 21st. Failed to make it out of committee by 2020 cutoff; dead bill.
Next step would be –
Legislative tracking page for the bill.
HB2427 is a companion bill in the Senate.

Summary –
The Growth Management Act currently lists fourteen goals that are supposed to guide the development and adoption of comprehensive plans and development regulations for cities and counties planning with that framework. The bill adds a fifteenth, which says that they’re supposed to ensure that their own comprehensive plans and development regulations, and the regional policies, plans, and strategies for their countywide planning framework (under RCW 36.70A.210) and for their regional transportation planning (under RCW 47.80) “adapt to and mitigate the effects of a changing climate; support state greenhouse gas emission reduction requirements and state vehicle miles traveled goals; build resilient infrastructure; and nurture environmental, economic, and human health.”