Climate change problems and carbon dioxide emissions: Expecting ‘Rio+10’

2002 ◽  
Vol 9 (2) ◽  
pp. 97-98 ◽  
Author(s):  
Costas Varotsos
Keyword(s):  
Climate Change ◽  
Carbon Dioxide ◽  
Carbon Dioxide Emissions

scholarly journals Czech Building Stock: Renovation Wave Scenarios and Potential for CO2 Savings until 2050

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2455
Author(s):  
Antonín Lupíšek ◽  
Tomáš Trubačík ◽  
Petr Holub
Keyword(s):  
Climate Change ◽  
Carbon Dioxide ◽  
Carbon Dioxide Emissions ◽  
Climate Change Mitigation ◽  
Emission Factors ◽  
Anthropogenic Sources ◽  
Building Stock ◽  
National Debate ◽  
Energy Consumptions ◽  
Change Mitigation

One of the major anthropogenic sources of greenhouse gases is the operation of building stock. Improving its energy efficiency has the potential to significantly contribute to achieving climate change mitigation targets. The purpose of this study was to roughly estimate such potential for the operation of the national building stock of Czechia to steer the national debate on the development of related national plans. The estimation is based on a simplified energy model of the Czech building stock that consists of sub-models of residential and nonresidential building stocks, for which their future energy consumptions, shares of energy carriers and sources, and emission factors were modeled in four scenarios. Uncertainties from the approximation of the emission factors were investigated in a sensitivity analysis. The results showed that the operation of the Czech building stock in 2016 totaled 36.9 Mt CO2, which represented 34.6% of the total national carbon dioxide emissions. The four building stock scenarios could produce reductions in the carbon dioxide emissions of between 28% and 93% by 2050, when also considering on-side production from photovoltaics. The implementation of the most ambitious scenario would represent a drop in national CO2 yearly emissions by 43.2% by 2050 (compared to 2016).

scholarly journals Sustainable healthcare – Time for ‘Green Podiatry’

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Angela Margaret Evans
Keyword(s):  
Climate Change ◽  
Carbon Dioxide ◽  
Greenhouse Gases ◽  
Health Professionals ◽  
Carbon Dioxide Emissions ◽  
Allied Health ◽  
World Health ◽  
Main Body ◽  
Allied Health Professionals ◽  
Foot Health

Abstract Background Healthcare aims to promote good health and yet demonstrably contributes to climate change, which is purported to be ‘the biggest global health threat of the 21st century’. This is happening now, with healthcare as an industry representing 4.4% of global carbon dioxide emissions. Main body Climate change promotes health deficits from many angles; however, primarily it is the use of fossil fuels which increases atmospheric carbon dioxide (also nitrous oxide, and methane). These greenhouse gases prevent the earth from cooling, resulting in the higher temperatures and rising sea levels, which then cause ‘wild weather’ patterns, including floods, storms, and droughts. Particular vulnerability is afforded to those already health compromised (older people, pregnant women, children, wider health co-morbidities) as well as populations closer to equatorial zones, which encompasses many low-and-middle-income-countries. The paradox here, is that poorer nations by spending less on healthcare, have lower carbon emissions from health-related activity, and yet will suffer most from global warming effects, with scant resources to off-set the increasing health care needs. Global recognition has forged the Paris agreement, the United Nations sustainable developments goals, and the World Health Organisation climate change action plan. It is agreed that most healthcare impact comes from consumption of energy and resources, and the production of greenhouse gases into the environment. Many professional associations of medicine and allied health professionals are advocating for their members to lead on environmental sustainability; the Australian Podiatry Association is incorporating climate change into its strategic direction. Conclusion Podiatrists, as allied health professionals, have wide community engagement, and hence, can model positive environmental practices, which may be effective in changing wider community behaviours, as occurred last century when doctors stopped smoking. As foot health consumers, our patients are increasingly likely to expect more sustainable practices and products, including ‘green footwear’ options. Green Podiatry, as a part of sustainable healthcare, directs us to be responsible energy and product consumers, and reduce our workplace emissions.

Balancing the competing needs of climate change, biodiversity and rural communities

2009 ◽  
Vol 2009 ◽  
pp. 249-249
Author(s):  
H Prosser
Keyword(s):  
Climate Change ◽  
Carbon Dioxide ◽  
Land Use ◽  
Nitrous Oxide ◽  
Anaerobic Digestion ◽  
Rural Communities ◽  
Carbon Dioxide Emissions ◽  
Energy Use ◽  
New Technology ◽  
The Uk

The work of the UK Climate Change Commission (UKCCC) in recommending targets and options for reducing emissions of greenhouse gases is focusing attention on what agriculture and land use can contribute to deliver these targets. Although overall the major issue is the reduction of carbon dioxide emissions from energy use, agriculture and land use are significant emitters of methane and nitrous oxide. UKCCC has identified three main routes by which emissions can be reduced• Lifestyle change with less reliance on carbon intensive produce -eg switching from sheep, and beef to pig, poultry and vegetables.• Changing farm practices – eg to improve use of fertilisers and manures• Using new technology on farms – eg modifying rumen processes, anaerobic digestion.

scholarly journals Ocean acidification needs more publicity as part of a strategy to avoid a global decline in calcifier populations

2017 ◽  
Vol 98 (6) ◽  
pp. 1227-1229 ◽  
Author(s):  
Angus R. Westgarth-Smith
Keyword(s):  
Climate Change ◽  
Carbon Dioxide ◽  
Ocean Acidification ◽  
Carbon Dioxide Emissions ◽  
Carbonic Acid ◽  
Public Awareness ◽  
Public Information ◽  
Lifestyle Changes ◽  
Reduce Carbon Dioxide ◽  
The Uk

Ocean acidification (OA) is caused by increasing atmospheric concentrations of carbon dioxide, which dissolves in seawater to produce carbonic acid. This carbonic acid reduces the availability of dissolved aragonite needed for production of some invertebrate exoskeletons with potentially severe consequences for marine calcifier populations. There is a lack of public information on OA with less than 1% of press coverage on OA compared with climate change; OA is not included in UK GCSE and A Level specifications and textbooks; environmental campaigners are much less active in campaigning about OA compared with climate change. As a result of the lack of public awareness OA is rarely discussed in the UK Parliament. Much more public education about OA is needed so that people can respond to the urgent need for technological and lifestyle changes needed to massively reduce carbon dioxide emissions.

The case for long-term studies of greenhouse gas emissions

1999 ◽  
Vol 26 (3) ◽  
pp. 166-168 ◽  
Author(s):  
TIM NEWCOMB
Keyword(s):  
Climate Change ◽  
Carbon Dioxide ◽  
Greenhouse Gases ◽  
Greenhouse Gas ◽  
Carbon Dioxide Emissions ◽  
Ghg Emissions ◽  
Industrialized Countries ◽  
Intergovernmental Panel ◽  
Long Term Studies

Many nations have recognized the need to reduce the emissions of greenhouse gases (GHGs). The scientific assessments of climate change of the Intergovernmental Panel on Climate Change (IPCC) support the need to reduce GHG emissions. The 1997 Kyoto Protocol to the 1992 Convention on Climate Change (UNTS 30822) has now been signed by more than 65 countries, although that Protocol has not yet entered into force. Some 14 of the industrialized countries listed in the Protocol face reductions in carbon dioxide emissions of more than 10% compared to projected 1997 carbon dioxide emissions (Najam & Page 1998).

scholarly journals Heterogeneous catalytic hydrogenation of CO2 to methanol: recent advances and prospects

2020 ◽  
Vol 61 (2) ◽  
pp. 57-67
Author(s):  
Shahla Firiddun Taghiyevа ◽  
Keyword(s):  
Climate Change ◽  
Carbon Dioxide ◽  
Carbon Dioxide Emissions ◽  
Power Plants ◽  
Catalytic Conversion ◽  
Raw Material ◽  
Liquid Fuels ◽  
Industrial Chemicals ◽  
Heterogeneous Catalytic ◽  
Reduce Carbon Dioxide

Carbon dioxide is the main source of the greenhouse effect, causing global warming and climate change. In this regard, in order to avoid more dangerous consequences, the United Nations Conference on Climate Change has emphasized the need to reduce carbon dioxide emissions by at least half their current value by 2050, aiming to limit the global increase in average temperature to a maximum of 2 °C. Carbon dioxide is emitted mainly from power plants (e.g., coal-based) and vehicles, and other industrial sources contribute to an increase in CO2 emissions. In recent years, the scientific community has begun to view CO2 not as a costly waste, but mainly as a potential carbon alternative to fossils. Therefore, future prospects for reducing carbon dioxide emissions will concern not only the development of more efficient carbon dioxide storage technologies, but also the development of new strategies for CO2 processing in the energetical direction and in chemical intermediate products. In this regard, the conversion of CO2 to methanol has received increased attention, since methanol (CH3OH) is a key raw material for industrial chemicals, which can later be converted to high molecular weight alternative liquid fuels. The review considers works published over the past 10 years on the heterogeneous catalytic conversion of CO2 to methanol. The characteristics of the used catalysts, reaction mechanisms, key technologies and problems of industrial use, prospects for the application of heterogeneous catalytic conversion of CO2 to hydrocarbons are discussed.

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