Food preservation includes food processing practices which prevent the growth of microorganisms , such as yeasts although some methods work by introducing benign bacteria or fungi to the food , and slow the oxidation of fats that cause rancidity. Food preservation may also include processes that inhibit visual deterioration, such as the enzymatic browning reaction in apples after they are cut during food preparation. By preserving food , food waste can be reduced, which is an important way to decrease production costs and increase the efficieny of food systems , improve food security and nutrition and contribute towards environmental sustainability . For instance, it can reduce the environmental impact of food production.
The Role of Youth for Preserving Environment Essay Sample
Greta Thunberg - Wikipedia
Energy conservation is reducing the amount of energy used for different purposes. This may result in an increase of financial capital , environmental value, national and personal security, and human comfort. Individuals and organizations that consume energy may conserve energy to reduce costs and promote economic, political and environmental sustainability. Industrial and commercial users may want to increase efficiency and thus maximize profit. On a larger scale, energy conservation is an energy policy.
Wildlife conservation refers to the practice of protecting wild species and their habitats in order to maintain healthy wildlife species or populations and to restore, protect or enhance natural ecosystems. The IUCN estimates that 27, species of the ones assessed are at risk for extinction. Expanding to all existing species, a UN report on biodiversity put this estimate even higher at a million species. It's also being acknowledged that an increasing number of ecosystems on Earth containing endangered species are disappearing.