Global warming is a complex and pressing issue that has captured the attention of scientists, policymakers, and the general public alike. The concept refers to the long-term increase in the Earth's average temperature, which is primarily caused by the release of greenhouse gases such as carbon dioxide and methane into the atmosphere. The consequences of global warming are far-reaching and potentially catastrophic, including rising sea levels, more frequent and severe weather events, and changes in ecosystems that threaten biodiversity and food security.

Measuring the complexity of the issue can be a challenge, as there are many factors at play and numerous sources of data to consider. However, one commonly used metric is the global average temperature anomaly, which measures the difference between the current temperature and the long-term average. Another metric is the concentration of carbon dioxide in the atmosphere, which has been steadily rising due to human activity and is now at its highest level in millions of years.

When it comes to burstiness, it's important to note that writing about global warming can involve a wide range of topics and perspectives. Some writers may focus on the scientific research behind the issue, while others may explore the political and social implications of climate change. Additionally, there may be bursts of creativity and emotion in writing about the urgent need for action to address global warming and prevent its worst effects.

Ultimately, writing about global warming requires both perplexity and burstiness. It is a complex and multifaceted issue that demands careful consideration and analysis, while also inspiring passion and urgency in those who write about it. By approaching the topic with both of these qualities in mind, we can better understand the causes and consequences of global warming and work towards effective solutions to mitigate its impact.