The world around us is our only home. Years of neglecting the resources we have been given today have led to the fact that the future of our planet Earth is threatened, and we witness this on a daily basis. The fast-paced lifestyle, consumerism and globalization have created unsustainable consumer habits that rapidly consume and destroy all the resources we have and that we need for life. The climate is changing, natural disasters are becoming more frequent, the sea level is rising more and more, and the waters are polluted with waste, primarily plastic, which has become a kind of symbol of "consumerist man". Every year as many as 9 million tons of plastic end up in the oceans, and if we think that this does not affect our lives, we are wrong. Plastic is a material that will never break down completely, but will reach the level of microplastics that then enter the bodies of marine organisms that we feed on. Traces of microplastics were found in as many as 114 aquatic animal species. It is estimated that around 700 marine species have eaten plastic or been in contact with plastic. Ultimately, if we eat marine species, microplastics end up in our bodies.