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Their other posts in the index, biggest breakout first.
Scientists say Earth’s population may need to be cut in half over the next two centuries to help protect the planet. Over the past 100 years, the global population has surged from fewer than two billion people to more than 8.3 billion - putting unprecedented pressure on Earth’s resources, ecosystems and climate. But researchers warn that the planet may not be able to sustain this level of growth indefinitely. The UN expects population to keep growing, peaking at around 10.3 billion by the 2080s. But fewer people could mean less pressure on resources, lower emissions, and more space for wildlife. Researchers say that fewer people could mean less pressure on resources, lower emissions, and more space for wildlife.