The degree index is based on the search volume of Internet users in Baidu, and takes keywords as the statistical object, scientifically analyzes and calculates the weighted sum of the search frequency of each keyword in Baidu web search. According to different search sources using Baidu, the search index is divided into PC search index (PC), mobile search index (wise) and aggregated data (all). (The data has been encrypted for record, please note the source for reprinting and sharing)
According to the 27 Baidu index keywords related to the environment, the Baidu index ( https://index.baidu.com/v2/index.html#/ ) is crawled, and the longitude and latitude are matched. You can build it yourself according to your research needs Related variables, data keywords include:
"Low carbon, sulfur dioxide, carbon dioxide, environmental protection, environmental protection, environmental pollution, emission reduction, water saving, sustainable, air quality, green space, greening, green, sewage, clean energy, decontamination, global warming, ecology, acid rain, Greenhouse effect, pollution, sewage, smog, circulation, PM2.5 smog, environmental pollution"
2017 Baidu Index-Sulfur Dioxide-all Distribution Map
2021 Baidu Index-Global Warming-all Data Diagram
Data source: Baidu Index
https://index.baidu.com/v2/index.html#/
Time span: 2011-2022
Area Scope: Cities across the country
Data fields:
Data legend:
Environmental Pollution - Baidu Index
Environmental Research Related Words Baidu Index
references:
[1] Wang Zhuwei, Sun Haohan, Song Chengsong. Investors' Attention and Carbon Trading Market Yield—An Empirical Study Based on Panel Data [J]. Industrial Technology Economics, 2021, 40(10): 3-14.
[2] Yang Lujia, Cheng Xiling. Research on the Influence of Garbage Sorting Network Concern on ZF Environmental Sanitation Investment [J]. Business and Management, 2022(10): 123-129. DOI: 10.16517/j.cnki.cn12- 1034/f.2022.10.012.
[3] Li Lin, Chen Xuan, Su Shiliang. Spatiotemporal Analysis of Ecological Civilization Concern Based on Baidu Index [J]. Geographic Information World, 2020,27(01):20-25.