Algal Communities: An Answer to Global Climate Change

Abstract

Human activities and resultant changes in global climate have profound consequences for ecosystems and economic and social systems, including those that are dependent upon marine systems. The increasing concentration of atmospheric greenhouse gases (GHGs) has resulted in gradual modification of multiple aspects of marine ecosystem properties such as salinity, temperature, and pH. It is well known that temporal and spatial variations in environmental properties determine the composition and abundance of different algal populations in a region. Within the present study the evidence for algal compatibility to changing environmental conditions is surveyed. The unique ability of algal communities to play a role in promotion of CO2 sequestration technologies, biorefinery approaches, as well as transition to CO2‐neutral renewable energy has gained traction with environmentalists and economists in a view to mitigation of climate change using algae. The next step is to re‐evaluate the assumption of a steady‐state oceanic carbon cycle and the role of biological activities in response to future climate changes.

Salinity tolerance and desalination properties of a Haematococcus lacustris strain from eastern Hungary

“…There could be several different physiological mechanisms in the background of salinity tolerance in algae. These physiological mechanisms could be the operation of efficient Na + /K + pump system ( Asadian et al, 2018 ); ion accumulation (especially Na + and Cl − ) in newly formed or already existing vacuoles ( Singh et al, 2018 ; Sahle-Demessie et al, 2019 ); and/or enhanced osmolyte production ( Holzinger and Karsten, 2013 ). Salinity tolerance is not necessarily connected to salt (ion) accumulation: e.g., a salt tolerant Dunaliella strain was able to maintain intracellular Na + concentrations lower than that of the environment ( Pick et al, 1986 ).…”

Analysis of Stock Market Development and CO2 Emissions on OECD Countries via an Empirical Model

“…However, anthropogenic activities, including burning fossil fuels, which absorb heat to cause global warming and give rise to changes in the climate, have increased GHG emissions worldwide. [ 4–6 ] As a result, the increases in GHG emissions have become a problem since the rapid industrial development of the 19th century. There has been a positive correlation between economic development and increased GHG emissions in most developed and developing countries worldwide.…”