Climate change, driven by human-induced changes in land use and atmospheric composition, leads to extreme weather events like droughts and heavy rains. These result in abiotic stresses such as heat, salinity, floods, and pest outbreaks, which significantly reduce crop productivity. The severity of these effects depends on the crop type, growth stage, and duration of exposure. Ensuring stable crop yields is essential for global food security under changing climate conditions. This calls for responsible practices and the adoption of advanced scientific approaches. Nano-formulations provide targeted delivery of active compounds with reduced toxicity and greater efficiency. Nanoparticles used in fertilizers, pesticides, and sensors enhance plant and soil health. They improve photosynthesis, root development, seed germination, and overall crop yield. Such applications also help crops tolerate abiotic stress more effectively. Therefore, nanotechnology plays a crucial role in promoting sustainable agriculture.