helkafen
[1] https://www.antenna.ch/wp-content/uploads/2017/03/AspectNut_...
[1] https://wwf.panda.org/knowledge_hub/where_we_work/amazon/ama...
I'd argue that people who actively work on climate change mitigation should keep flying if it really helps them be more effective. One of my friends does that: she helps urban planners save millions of tons of CO2, while emitting a few tons by herself. Overall, it's a good investment.
The practical solutions are well known in the community, see the Drawdown project for a pretty exhaustive list. Since we are very late in the fight against climate change, all of these solutions need to be implemented, so there's no point in promoting just a few of them.
For now, they prefer to focus on raising awareness and get citizens to demand change urgently. The next step will be to ask for a citizen's assembly (https://rebellion.earth/act-now/resources/citizens-assembly).
You might be interested by "The Happiness-Energy Paradox: Energy Use is Unrelated to Subjective Well-Being".
Earth’s per capita energy use continues to grow, despite technological advances and widespread calls for reduction in energy consumption. The negative environmental consequences are well known: resource depletion, pollution, and global warming. However many remain reluctant to cut energy consumption because of the widespread, although, implicit, belief that a nation’s well being depends on its energy consumption. This article systematically examines the evidential support for the relationship between energy use and subjective well-being at the societal level, by integrating data from multiple sources, collected at multiple levels of government, and spanning four decades. This analysis reveals, surprisingly, that the most common measure of subjective well-being, life satisfaction, is unrelated to energy use -- whether measured at the national, state or county level.