Yandex was the leading search engine in Russia in the second quarter of 2025, having accounted for roughly ********** of total user visits over that period. The second-most visited search engine in the country was Google, whose share of visits decreased slightly from the previous quarter. Yandex search usage in Russia Despite the global dominance of Google as a primary search engine, Russian consumers give their preference to homegrown Yandex and Mail.ru. Furthermore, Yandex is the most popular search engine for news reading, as well as the most-visited online resource in the country, with a reach of over ** percent. Besides the search engine, Yandex offers a wide range of online services, such as food delivery, maps, and a voice assistant. Mail.ru and Rambler search engines The third-most visited search engine, Mail.ru, belonged to the VK Group, one of the most expensive internet companies operating in Russia, whose value was measured at *** million U.S. dollars in 2025. Rambler, launched in 1996, saw a decline in usage compared to the 2000s. It was a part of the Rambler Group, which consisted of several media organizations, including the online video service Okko and news services Lenta.ru and Rambler News Service. The corporation Sber acquired the group in 2020.

Zen (former Yandex) was the most popular search engine for news reading in Russia in 2023, according to almost a fifth of survey respondents. Further 13 percent of Russians obtained media reports from Google News or were redirected to its links.

As of March 2025, Google represented 79.1 percent of the global online search engine market on desktop devices. Despite being much ahead of its competitors, this represents the lowest share ever recorded by the search engine in these devices for over two decades. Meanwhile, its long-time competitor Bing accounted for 12.21 percent, as tools like Yahoo and Yandex held shares of over 2.9 percent each. Google and the global search market Ever since the introduction of Google Search in 1997, the company has dominated the search engine market, while the shares of all other tools has been rather lopsided. The majority of Google revenues are generated through advertising. Its parent corporation, Alphabet, was one of the biggest internet companies worldwide as of 2024, with a market capitalization of 2.02 trillion U.S. dollars. The company has also expanded its services to mail, productivity tools, enterprise products, mobile devices, and other ventures. As a result, Google earned one of the highest tech company revenues in 2024 with roughly 348.16 billion U.S. dollars. Search engine usage in different countries Google is the most frequently used search engine worldwide. But in some countries, its alternatives are leading or competing with it to some extent. As of the last quarter of 2023, more than 63 percent of internet users in Russia used Yandex, whereas Google users represented little over 33 percent. Meanwhile, Baidu was the most used search engine in China, despite a strong decrease in the percentage of internet users in the country accessing it. In other countries, like Japan and Mexico, people tend to use Yahoo along with Google. By the end of 2024, nearly half of the respondents in Japan said that they had used Yahoo in the past four weeks. In the same year, over 21 percent of users in Mexico said they used Yahoo.

The Heilongjiang transboundary basin region, where the Russian Far East and northeastern China are located, is rich in natural resources and has great potential for the development and utilization of agricultural resources. Facing the crisis of increasing global conflicts and shortage of food supply chain, strengthening the monitoring and development and utilization of agricultural resources in the Heilongjiang basin is of great significance to guarantee global food security. In this study, the Heilongjiang transboundary watershed is used as the study area, and machine learning and sample migration methods are applied to construct a comprehensive set of fine classification system for agricultural crops. Based on historical remote sensing image data and the Google Earth Engine (GEE) cloud platform, the classification of major crops such as wheat, corn, soybean and rice in 2015, 2020 and 2023 was completed with an overall accuracy of more than 84% and a Kappa coefficient of more than 0.81, using Landsat images as the data source.

Codes to access annual yearlong surface water maps in Northeast Asia from 2000 to 2023 on Google Earth Engine.Related paper: Zhang, C., Xiao, X., Wang, X. et al. Climate-induced losses of surface water and total water storage in Northeast Asia. Commun Earth Environ 6, 479 (2025). https://doi.org/10.1038/s43247-025-02449-0We provide annual yearlong surface water in two spatial resolutions:30-m, time period: 2000-2023; data source: Landsat10-m, time period: 2015-2023; data source: Landsat + Sentinel-2All the data are in TIFF format. 1 represents yearlong surface water, and NoData represents non-yearlong surface water.Please contact Chenchen Zhang (chchenzhang95@gmail.com) if you have any questions.

To explicitly understand the spatio-temporal pattern change of desertification and its driving mechanism in China-Mongolia-Russia economic corridor proposed by the “Belt and Road Initiative”, the classification and regression tree(CART), support vector machine(SVM), random forest(RF) and Albedo-NDVI model were compared to better monitor desertification on Google Earth Engine platform. A simulation method of land cover scenario was developed on the basis of analyzing the correlation of spatial distribution between HLZ ( Holdridge life zone) and the land cover. According to the climate scenarios data and the land cover data in 2000 obtained from remoting sense image, the simulation of desertification in China-Mongolia-Russia economic corridor.