One of the chief ways our political leaders are dishonest about climate change is in making promises which they know will be beyond their time in office, and which they can therefore never be held accountable for.
Emission reduction targets set in the 2030s and beyond certainly qualify, as do promises that some future government will ban a harmful technology.
When the time to actually implement the ban comes, a new government subject to popular opinion and seeking to win re-election is likely to soften or ignore it. Germany right now provides an example. They had pledged to phase out fossil fuel cars by 2035, but are now realizing that the date is getting close enough to start looking like a real promise: Germany faces EU backlash over U-turn on phasing out combustion engine.
Governments need to be evaluated on what they will do right now, this year, during the term of office when they hold power. Otherwise, we are setting oursevles up as citizens to be lied to while our worst problems grow increasingly severe. A government that says it has a long-term plan to zero out carbon emissions, but which is allowing them to grow in the short term and allowing more fossil fuel projects, is lying with the connivance of its voters.