The article titled "Introduction to editorial" in Historical Methods discusses the importance of developing historical environmental data to understand the climate and nature crisis. It highlights several articles published in the journal that demonstrate this significance, including studies on adapting to the Little Ice Age, crowdsourcing historical weather records, and creating a geodatabase for forest history. The coeditors of Historical Methods also express their willingness to publish an editorial on treating the climate and nature crisis as a global health emergency for the United Nations Climate Change Conference. The article includes a map showing the distribution and density of records in the LONGWOOD database. [Extracted from the article]