menu , the relative price of vegetarian options  and the 'access'  to vegetarian options in the retail physical environment  can all increase consumption of plant-based foods and decrease meat consumption . Studies on food environment 'nudging' methods found that making the vegetarian meal option the default during conference registration or on a meal plan significantly reduced meat consumption . Studies simply educating people about the negative health and environmental/ climate outcomes of meat consumption have been found to have very little impact . More research is needed to understand the potential for motivational crowding in shaping pro-climate dietary choice, as has been demonstrated in development  and conservation interventions .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report