Climate change is a significant global issue, with deforestation and forest degradation contributing substantially to greenhouse gas emissions. This study aims to analyze the status of forest areas in Indonesia, identify the impact of deforestation and forest degradation on climate change, and evaluate the effectiveness of the REDD+ strategy as a conservation effort to address climate change. The research method used is a systematic literature review, involving the identification, screening, and analysis of data from various scientific sources. The results indicate that Indonesia has 120.5 million hectares of forest area; however, the high rate of deforestation is driven by land conversion for plantations, illegal logging, and mining activities. This deforestation contributes to increased CO2 emissions and exacerbates climate change. The implementation of the REDD+ strategy in Indonesia has shown potential in reducing the rate of deforestation and forest degradation through economic incentives and the enhancement of local capacity. This study highlights the importance of sustainable forest management and effective REDD+ policy implementation to address climate change.Perubahan iklim adalah isu global yang signifikan, dengan deforestasi dan degradasi hutan berkontribusi besar terhadap emisi gas rumah kaca. Penelitian ini bertujuan untuk menganalisis status kawasan hutan di Indonesia, mengidentifikasi dampak deforestasi dan degradasi hutan terhadap perubahan iklim, serta mengevaluasi efektivitas strategi REDD+ sebagai upaya konservasi untuk mengatasi perubahan iklim. Metode yang digunakan adalah tinjauan literatur sistematis, yang mencakup proses identifikasi, penyaringan, dan analisis data dari berbagai sumber ilmiah. Hasil penelitian menunjukkan bahwa Indonesia memiliki 120,5 juta hektar kawasan hutan, namun laju deforestasi yang tinggi disebabkan oleh konversi lahan untuk perkebunan, pembalakan liar, dan aktivitas pertambangan. Deforestasi ini berkontribusi pada peningkatan emisi CO2 dan memperparah perubahan iklim. Implementasi strategi REDD+ di Indonesia menunjukkan potensi dalam mengurangi laju deforestasi dan degradasi hutan melalui insentif ekonomi dan peningkatan kapasitas lokal. Penelitian ini menekankan pentingnya pengelolaan hutan yang berkelanjutan dan implementasi kebijakan REDD+ yang efektif untuk mengatasi perubahan iklim.

Water is very important for all aspects of life on earth, agriculture is one of the fields that really need large amounts of water because of the use of water in the
process of plant photosynthesis. Water that has good quality is if the water is not excessively polluted by harmful chemicals or minerals. One indicator that water is polluted is a change in temperature and pH (acidity) of the water. Temperatures that are too hot in the water will interfere with the growth of plants and other microorganisms. While the normal pH of water has a pH that ranges from 6.5 to 7.5. The quality of water and soil is very important in agriculture. The level of acidity (pH) and soil temperature are one of the things that affect plant fertility. Therefore, the quality of water and soil on agricultural land is one of the important things that needs special attention in its management. One solution so that water and soil quality can be monitored and managed efficiently is to utilize a Wireless Sensor Network based on the Internet of Things (IoT). The use of the ESP8266 Module as a WIFI module, is widely used by Internet of Things-based applications because the price is cheap so it reduces a lot of costs and has a fairly good speed of 80 MHz. This study aims to develop the concept of a Wireless Sensor Network by utilizing the ESP8266 module to monitor pH values using a pH Meter Analog Kit sensor and temperature from agricultural land using a DS18B20 Waterproof sensor and can be monitored at any time using a smartphone.