The freshness of a website's content is another important ranking factor. Regularly updating and adding new, relevant content to a site can help signal to search engines that it is an active and authoritative source of information. Self-improvement One of the primary causes of climate change is the emission of greenhouse gases, such as carbon dioxide and methane, into the atmosphere. These gases trap heat from the sun and cause the planet to warm up. To combat climate change, it's essential to reduce greenhouse gas emissions and transition to cleaner sources of energy, such as solar and wind power.