Why are beaches being changed into city, and what effect do they have on the environment

Modern, human-caused climate change is escalating the threats that make sea walls necessary. Sea levels are rising, putting communities at greater risk from floods. Storms are intensifying, causing more and more sand to erode from beaches.

it is very hard for the climatologists to precisely predict how will the global temperatures be changing so there's lots of models, some of which differ significantly, this is due to multiple factors, and probably the most important is the human activity.

humans have been a key factor in climate change around the globe since the start of the industrial revolution, and in the past few decades the consequences are becoming more obvious. there's lots of emission of pollutants in the atmosphere as well as changing the environment on the surface itself, so it's really hard to predict how will that go in the future because there's some countries that are reducing the damage and are going towards green energy, while others are stubbornly continuing with pollution and damages to the environment.