Read the passage and choose the best summary of its main idea:…

Read the passage and choose the best summary of its main idea: ‘The world is witnessing a surge in global temperatures, leading to melting of polar ice caps and rising sea levels. This phenomenon, known as global warming, is primarily caused by human activities such as burning fossil fuels and deforestation, which increase carbon dioxide levels in the atmosphere. Immediate collective action is necessary to mitigate its devastating effects on ecosystems and human habitats.’