Environment damage and improvement
Preserving wetlands:
In 1971 representives from 21 nations met in Iran to discuss the threat to the worlds wetlands. They all signed an agreement called the Ramsar Convention. This listed things that they would all try to do to save the Earth’s wetlands.
Improvement:
By 2025 there has been progress in global wetland conservation since the Ramsar Convention was first signed in 1971 — including a stronger strategic framework, more internationally recognized wetland sites, and increased engagement at national and city levels. However, wetland loss and degradation continue, meaning the Convention’s work is still very much needed and evolving.
Protecting the ozone layer:
There is a gas called chlorofluorocarbons (CFC), this gas damages the ozone layer. In 1989, a treaty came into force that was signed by many countries. They agreed to phase out the use of CFCs.
Improvement:
Since countries agreed in 1989 to phase out CFCs under the Montreal Protocol, ozone-depleting substances have largely been eliminated, the ozone layer is slowly healing, and recent 2025 observations show smaller ozone hole conditions, indicating real environmental improvement. However, full restoration of the ozone layer will still take several more decades.
Reducing carbon dioxide emissions:
Countries have signed international treaties promising to reduce the amount of CO2 they produce. The CO2 concentrations in the atmosphere are still rising, this is causing the Earth to get warmer, This is called global warming.
Improvement:
By 2025, some progress has been made, such as using more renewable energy and setting climate targets. However, global CO₂ levels are still rising because fossil fuels are widely used, so global warming continues.