Since the second half of the 18th century (i.e. the beginning of the Industrial Revolution), human impact on the climate has increased sharply. With the development of industry and the release of large amounts of greenhouse gas carbon dioxide (later referred to as CO₂), due to activities such as the burning of fossil fuels, people have significantly altered climate parameters which reflected onto many aspects of the living and non-living world. Seagrass meadows are one of the most productive marine habitats, they represent places with great biodiversity and provide numerous ecological services. Through the geological past, seagrasses have survived several highly stressful periods with large oscillations of climate parameters, however today’s climate changes caused by anthropogenic activities pose a serious threat to seagrasses. The survival of seagrasses is additionally endangered by other anthropogenic activities - anchoring, discharging wastewater, construction, embankment, introduction of new species via ballast water, aquaculture, and fishing. Due to the great importance of seagrasses it is necessary to protect them as much as possible, and by studying the factors which negatively affect them, we can find adequate ways to protect them.