In the given passage four options are given for each blank. Select the most appropriate option to complete the given passage, which also fits contextually as per the word given in the bracket.

Climate change is a pressing global issue that demands immediate attention and action. The (1. seriousness ) _________ of this problem can no longer be denied, as we witness more frequent and severe weather events. It is crucial to (2. discuss) _________ the causes of climate change , which primarily result from human activities such as the burning of fossil fuels, deforestation, and industrial processes. To combat climate change, we must reduce our carbon (3. impression) _________ by transitioning to renewable energy sources, conserving forests, and adopting sustainable practices in (4. whole) _________ the sectors of the economy. Additionally, individual actions, such as reducing energy consumption and supporting environmentally-friendly policies, play a vital role in addressing this global crisis. As the consequences of climate change become more evident, it is imperative that we (5. joint efforts) _________ as a society to protect our planet for future generations.