Sea-level rise is difficult to predict accurately because the climate system is highly complex. The behavior of ice sheets in regions such as Greenland and Antarctica remains uncertain, and future temperature changes are also difficult to estimate. These uncertainties make it challenging for scientists to determine the exact rate of sea-level rise.

Addressing sea-level rise requires significant financial investment, particularly for infrastructure such as seawalls and flood management systems. These solutions often require long-term planning and funding, which can be difficult to sustain. In addition, many developing countries lack the resources needed to implement effective adaptation strategies. 

Efforts to address sea-level rise depend heavily on international cooperation, but differences in national interests often create barriers. Countries may prioritize economic growth over environmental protection, which can delay agreements and weaken global climate policies. As a result, coordinated action at the global level becomes difficult to achieve.

There is no single solution to fully address sea-level rise, and many strategies take a long time to produce meaningful results. In some cases, the impacts of rising sea levels are already irreversible, making it even more challenging to manage future risks. Therefore, continuous global effort and long-term commitment are essential.