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James Linzel

Experts be damned: World population will continue to rise | Science/AAAS | News - 0 views

news.sciencemag.org/...-population-will-continue-rise

experts world population rise science

shared by James Linzel on 21 Sep 14 - No Cached
  • there’s a 95% chance the world population will be between 9 billion and 13.2 billion by the year 2100,
James Linzel

IPCC finally weighs in on how to avoid further climate change | Ars Technica - 0 views

arstechnica.com/...o-avoid-further-climate-change

shared by James Linzel on 15 Apr 14 - No Cached
  • growth is accelerating.
  • from 1970-2000 was about 0.4 billion tons more each year
  • three-quarters of these emissions come from fossil fuels
  • ...9 more annotations...
  • rest come from things like deforestation, livestock production, and industrial pollutants.
  • much is due to economic growth and the rising use of coal in places like China.
  • population growth
  • Combining all anthropogenic climate forcings—including greenhouse gases, land use changes, and sunlight-reflecting aerosol particles—gives a net result equal to a CO2 concentration of around 430 parts-per-million
  • it must come back down to 450 parts-per-million by the end of the century
  • it’s clear that low-carbon options like renewables, nuclear energy, and fossil fuels with carbon capture will need to account for more than three-quarters of all electrical generation by 2050 if we’re going to meet that two degree Celsius target
  • Despite strong urban growth in many places, energy use in buildings could level off or decrease by the middle of this century if the right choices are made in terms of efficiency
  • long-lasting infrastructure we put in place now can determine, to a large degree, how much energy residents of a city will need to use
  • And while we’ve made some progress on deforestation, there’s potential there as well—forests and agricultural lands could be pulling CO2 out of the atmosphere, rather than releasing more, by the end of the century
Jason Dillon

Climate Disruptions, Close to Home - NYTimes.com - 0 views

www.nytimes.com/...disruptions-close-to-home.html

NCA climate nytimes

shared by Jason Dillon on 08 May 14 - No Cached
  • report
  • the main reason neither Congress nor much of the American public cares about global warming is that, as problems go, it seems remote. Anyone who reads the latest National Climate Assessment, released on Tuesday, cannot possibly think that way any longer.
  • The study, produced by scientists from academia, government and the private sector, is the definitive statement of the present and future effects of climate change on the United States. Crippling droughts will become more frequent in drier regions; torrential rains and storm surges will increase in wet regions; sea levels will rise and coral reefs in Hawaii and Florida will die. Readers can pick their own regional catastrophes,
  • Jason Dillon on 08 May 14
     
    "report"
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