Climate change is caused by human activities and some of the consequences are already being felt, others that will be occurring will no longer be preventable. The territory of the Czech Republic will have to reckon with increasing weather extremes in the future, including heat waves, droughts and floods, and the risk of migration of people from more susceptible areas in the tropical and subtropical will increase. To mitigate the ongoing changes, it is necessary to reduce the consumption of fossil fuels until carbon neutrality is achieved. The beginning of this transformation is already necessary.