Role of Algae in Built Environment and Green Cities: A Holistic approach towards Sustainability

The changing lifestyle, urbanization, and depletion of non-renewable resources to match the ever-increasing energy demand are causing a pessimistic impact on environment. cities responsible for 75% carbon emissions about 60-80% consumption globally, precarious situation because they only constitute 3% earth’s land. Urbanization makes vulnerable due climatic conditions possibilities natural deserts disasters, thereby compelling researchers go planning building green resilient cities. Green imperative in resisting environmental crisis assure sustainable future upcoming generations. pivotal role is played by renewable sources energy. Therefore, solar wind systems were employed, but eventually these associated with cost pollution issues. This led paradigm-shifting towards algae as third-generation feedstock it expected become potential source environment following advantages: (i) sequestration CO2 other greenhouse gases (GHGs), (ii) can be easily rapidly cultured bioengineered, (iii) utilize wastewater nutrients its cultivation, (iv) their growth does not depend upon geography climate, (v) algal biomass processed into biofuels (biodiesel, bioethanol, biogas etc) useful bioproducts (biofertilizer & biochar). review paper incorporates microalgal bioreactive façades (algae powered buildings) simultaneous mitigation production, contributing Since importance Urban Space (UGS) cities, functions during critical period pandemic also explained together efficient viable biofoundry approach converting blooms urban water bodies products.