Sentences with phrase «economically feasible alternatives»

The scientists have devised a new manufacturing technique that could boost the efficiency of an inexpensive type of solar cell by up to 50 %, making the technology an economically feasible alternative to fossil fuels in the search for sustainable energy.

In its most recent environmental review, the State Department is repeating its argument that the Keystone XL tar sands pipeline will have limited impact on greenhouse gas emissions because rail transport is an economically feasible alternative.

Not exact matches

«Climate science» as it is used by warmists implies adherence to a set of beliefs: (1) Increasing greenhouse gas concentrations will warm the Earth's surface and atmosphere; (2) Human production of CO2 is producing significant increases in CO2 concentration; (3) The rate of rise of temperature in the 20th and 21st centuries is unprecedented compared to the rates of change of temperature in the previous two millennia and this can only be due to rising greenhouse gas concentrations; (4) The climate of the 19th century was ideal and may be taken as a standard to compare against any current climate; (5) global climate models, while still not perfect, are good enough to indicate that continued use of fossil fuels at projected rates in the 21st century will cause the CO2 concentration to rise to a high level by 2100 (possibly 700 to 900 ppm); (6) The global average temperature under this condition will rise more than 3 °C from the late 19th century ideal; (7) The negative impact on humanity of such a rise will be enormous; (8) The only alternative to such a disaster is to immediately and sharply reduce CO2 emissions (reducing emissions in 2050 by 80 % compared to today's rate) and continue further reductions after 2050; (9) Even with such draconian CO2 reductions, the CO2 concentration is likely to reach at least 450 to 500 ppm by 2100 resulting in significant damage to humanity; (10) Such reductions in CO2 emissions are technically feasible and economically affordable while providing adequate energy to a growing world population that is increasingly industrializing.

Nevertheless, it seems likely that a CO2 concentration in the range 500 to 900 ppm might produce a temperature rise of at least 2 °C from the late 19th century that could be problematic for humankind; (7) The potential negative impact on humanity has been exaggerated; (8) The only alternative to rising greenhouse gas concentrations is to immediately and sharply reduce CO2 emissions — whether this averts a «pending disaster» is not well understood; (9) Even with such draconian CO2 reductions, the CO2 concentration is likely to reach at least 450 to 500 ppm by 2100 probably resulting in some warming; (10) Such reductions in CO2 emissions are neither technically feasible nor economically affordable, and would necessitate inadequate energy supply to a growing world population that is increasingly industrializing, leading to worldwide depression.

What is necessary now is the development of alternative approaches that are politically realistic and economically feasible.

Many states require the plaintiffs show that the risk could have been mitigated by adopting an alternative design that was economically feasible and in harmony with the product's intended purpose.