What are possible solutions of moving forward and what can be learned from 2021 Winter Climate Crisis?

Some possible solutions include:

1- to replace oil and gas energies with renewable sources  

2- to replace fossil fuel-based transport systems with sustainable methods

3- to recycle material  

4- to prevent air pollution  

Explanation:

The replacement of fossil fuel energy sources with renewables energy sources (e.g., solar energy, wind energy, geothermal energy) can be considered the most important strategy to reduce (and even revert) the human effects on climate change. Moreover, sustainable transportation systems or 'green transport methods' (e.g., walking, cycling) don't consume fossil fuels, and therefore they have zero impact on the environment. Recycling materials can also be very useful in order to reduce greenhouse gases (e.g., CO2) by reducing the consumption of energy. Finally, methods to prevent air pollution (for example, by avoiding the burning of leaves and trash) can be applied in order to reduce CO2 emissions and thus minimize environmental impact.