José Goldemberg

Bio: José Goldemberg is an academic researcher from University of São Paulo. The author has contributed to research in topics: Renewable energy & Sustainable development. The author has an hindex of 45, co-authored 146 publications receiving 9587 citations. Previous affiliations of José Goldemberg include University of Saskatchewan.

Ethanol for a Sustainable Energy Future

Abstract: Renewable energy is one of the most efficient ways to achieve sustainable development. Increasing its share in the world matrix will help prolong the existence of fossil fuel reserves, address the threats posed by climate change, and enable better security of the energy supply on a global scale. Most of the "new renewable energy sources" are still undergoing large-scale commercial development, but some technologies are already well established. These include Brazilian sugarcane ethanol, which, after 30 years of production, is a global energy commodity that is fully competitive with motor gasoline and appropriate for replication in many countries.

World energy assessment : energy and the challenge of sustainability

Abstract: This report is based on the premise that energy is an essential component of sustainable development of social and economic progress that meets the needs of both present and future generations. The report discusses the linkage between energy and economic, social, environmental, and security issues, and analyzes the contradictions between current patterns of use and objectives in these areas. Key features include reviews of energy resources and technology options from the point of view of sustainability including better end-use efficiency, greater reliance on renewable sources of energy, and next-generation nuclear and fossil-fuel technologies; examination of plausible scenarios for combining various options to achieve a sustainable and relatively prosperous future; and consideration of policy options for producing and using energy in ways that are compatible with sustainable development.

Energy for a Sustainable World

Abstract: A team of members from Brazil Sweden India and the US have conducted an energy analysis which focused on energy demand rather than energy supply. This end-use analysis is entitled the End Use Global Energy Project (EUGEP). The EUGEP global energy scenario for 2020 indicates a per capita energy use in industrialized countries of almost 50% lower than what it was in 1980 (3.2 kilowatts/person vs. 6.3 kilowatts/person). The scenario assumes a widespread shift from the inefficient noncommercial fuels to modern energy technologies in high efficiency applications. Other assumptions include limited growth in nuclear power a balanced energy supply mix and limits in use of fossil fuels especially coal. It finds that a mean 1.3 kilowatts/person could support the living standard present in western Europe in the late 1980s. The EUGEP scenario depicts a society in which global energy use is only 10% higher than it was in the late 1980s despite an increase in the population to 7 billions people compared with an increase of over 100% for conventional projections. This energy analysis serves only as an illustration of the technically possible. It communicates to policymakers that they have a choice. The analysts present case studies from Sweden and the US. They also address global energy and use as it applies in developing countries and market-oriented countries.

Sustainable Biofuels Redux

Abstract: Science-based policy is essential for guiding an environmentally sustainable approach to cellulosic biofuels.

Biofuels from microalgae—A review of technologies for production, processing, and extractions of biofuels and co-products

Abstract: Sustainability is a key principle in natural resource management, and it involves operational efficiency, minimisation of environmental impact and socio-economic considerations; all of which are interdependent. It has become increasingly obvious that continued reliance on fossil fuel energy resources is unsustainable, owing to both depleting world reserves and the green house gas emissions associated with their use. Therefore, there are vigorous research initiatives aimed at developing alternative renewable and potentially carbon neutral solid, liquid and gaseous biofuels as alternative energy resources. However, alternate energy resources akin to first generation biofuels derived from terrestrial crops such as sugarcane, sugar beet, maize and rapeseed place an enormous strain on world food markets, contribute to water shortages and precipitate the destruction of the world's forests. Second generation biofuels derived from lignocellulosic agriculture and forest residues and from non-food crop feedstocks address some of the above problems; however there is concern over competing land use or required land use changes. Therefore, based on current knowledge and technology projections, third generation biofuels specifically derived from microalgae are considered to be a technically viable alternative energy resource that is devoid of the major drawbacks associated with first and second generation biofuels. Microalgae are photosynthetic microorganisms with simple growing requirements (light, sugars, CO 2 , N, P, and K) that can produce lipids, proteins and carbohydrates in large amounts over short periods of time. These products can be processed into both biofuels and valuable co-products. This study reviewed the technologies underpinning microalgae-to-biofuels systems, focusing on the biomass production, harvesting, conversion technologies, and the extraction of useful co-products. It also reviewed the synergistic coupling of microalgae propagation with carbon sequestration and wastewater treatment potential for mitigation of environmental impacts associated with energy conversion and utilisation. It was found that, whereas there are outstanding issues related to photosynthetic efficiencies and biomass output, microalgae-derived biofuels could progressively substitute a significant proportion of the fossil fuels required to meet the growing energy demand.

Climate change 2014 - Mitigation of climate change

Abstract: The talk with present the key results of the IPCC Working Group III 5th assessment report. Concluding four years of intense scientific collaboration by hundreds of authors from around the world, the report responds to the request of the world's governments for a comprehensive, objective and policy neutral assessment of the current scientific knowledge on mitigating climate change. The report has been extensively reviewed by experts and governments to ensure quality and comprehensiveness.

Role of renewable energy sources in environmental protection: A review

Abstract: Renewable technologies are considered as clean sources of energy and optimal use of these resources minimize environmental impacts, produce minimum secondary wastes and are sustainable based on current and future economic and social societal needs. Sun is the source of all energies. The primary forms of solar energy are heat and light. Sunlight and heat are transformed and absorbed by the environment in a multitude of ways. Some of these transformations result in renewable energy flows such as biomass and wind energy. Renewable energy technologies provide an excellent opportunity for mitigation of greenhouse gas emission and reducing global warming through substituting conventional energy sources. In this article a review has been done on scope of CO2 mitigation through solar cooker, water heater, dryer, biofuel, improved cookstoves and by hydrogen.