Chromium-6, the cancer-causing chemical best known for its role in the Erin Brockovich story, has been found at higher-than-recommended levels in the tap water supplying two-thirds of all Americans, according to a report from the Environmental Working Group.
EWG, a nonprofit research organization, analyzed Environmental Protection Agency data on more than 60,000 samples collected at water utilities in all 50 states between 2013 and 2015. They found chromium-6 at levels deemed unsafe by public health officials.
“Americans deserve to know if there are potentially harmful levels of a cancer-causing chemical in their tap water,” David Andrews, a senior scientist at EWG and co-author of the report, told the PBS NewsHour.
Chromium-6 occurs naturally in the environment, but high quantities are also produced by industrial projects. Pollution can occur when these industrial sites fail to follow proper waste disposal methods, such as with unlined coal ash ponds.
“The difficulty with chromium-6 is how to set a standard to protect human health during windows of development,” Andrews said.
Even in small amounts, chromium-6 can cause skin burns, pneumonia, complications during childbirth and stomach cancer.
Continue reading “What Is Chromium-6 And How Did It Infiltrate America’s Drinking Water?”
Businesses could earn hundreds of billions of dollars a year by 2030 by investing in better agriculture and food ranging from micro-irrigation of crops to reduced waste, an international study said on Friday.
A commission including chief executives of Unilever and Aviva as well as academics and civil society groups said companies could exploit U.N. plans to end poverty and hunger and protect the planet by 2030.
“Instead of treating it as ‘Oh my God, another huge global problem to worry about’ … you can break it down into chunks of real business possibility,” Mark Malloch-Brown, chair of the Business and Sustainable Development Commission, told Reuters.
The Commission, launched in January, said businesses could unlock about $2.3 billion a year in food and agriculture sectors by investing $360 billion a year to help achieve the U.N.’s Sustainable Development Goals for 2030.
It listed opportunities in 14 areas including farming technology, restoring land and forests, urban agriculture, irrigation, aquaculture and better packaging. Continue reading “Big farm opportunities seen for business in 2030 U.N. goals”
A new study from the University of Exeter, published in the journal Ecology Letters, found that phytoplankton — microscopic water-borne plants — can rapidly evolve tolerance to elevated water temperatures. Globally, phytoplankton absorb as much carbon dioxide as tropical rainforests and so understanding the way they respond to a warming climate is crucial.
Phytoplankton subjected to warmed water initially failed to thrive but it took only 45 days, or 100 generations, for them to evolve tolerance to temperatures expected by the end of the century. With their newfound tolerance came an increase in the efficiency in which they were able to convert carbon dioxide into new biomass.
The results show that evolutionary responses in phytoplankton to warming can be rapid and might offset some of the predicted declines in the ability of aquatic ecosystems to absorb carbon dioxide as the planet warms.
Continue reading “Don’t Forget Plankton In Climate Change Models”
Seeds are the plant equivalent of an armoured vehicle. They carry the offspring of plants out into the dangerous world and protect them until the time is right for them to grow into new plants. The…
Source: Seeds up close and personal
“Neem seed cake also reduce alkalinity in soil, as it produces organic acids on decomposition. Being totally natural, it is compatible with soil microbes, improves and rhizosphere microflora and hence ensures fertility of the soil. Neem Cake improves the organic matter content of the soil, helping improve soil texture, water holding capacity, and soil aeration for better root development.” – Wikipedia
There it is, another added benefit of the Neem Cake is its ability to create a favourable growing environment on the more alkaline soils. So not only are you getting an excellent source of organic nutrients and the “pest and disease resistance” it’s also working as a soil conditioner too.
The below shows how soil PH affects the availability of nutrients to the plants, it’s useful as a general guide.
Field investigations between 2002 and 2011 identified soil structural degradation to be widespread in SW England with 38% of the 3243 surveyed sites having sufficiently degraded soil structure to produce observable features of enhanced surface-water runoff within the landscape. Soil under arable crops often had high or severe levels of structural degradation. Late-harvested crops such as maize had the most damaged soil where 75% of sites were found to have degraded structure generating enhanced surface-water runoff. Soil erosion in these crops was found at over one in five sites. A tendency for the establishment of winter cereals in late autumn in the South West also often resulted in damaged soil where degraded structure and enhanced surface-water runoff were found in three of every five cereal fields. Remedial actions to improve soil structure are either not being undertaken or are being unsuccessfully used. Brown Sands, Brown Earths and loamy Stagnogley Soils were the most frequently damaged soils. The intensive use of well-drained, high quality sandy and coarse loamy soils has led to soil structural damage resulting in enhanced surface-water runoff from fields that should naturally absorb winter rain. Surface water pollution, localised flooding and reduced winter recharge rates to result from this damage. Chalk and limestone landscapes on the other hand show little evidence of serious soil structural degradation and <20% of fields in these landscapes generate enhanced runoff.
DIRECT DOWNLOAD: https://planetpermaculture.files.wordpress.com/2015/04/sum12068.pdf
Found this book on soil biology which highlights the importance of this soil food web. Excellent microscopy photos here, well worth checking over if you’ve never seen them before or if your thinking about looking at soil under a microscope. It also covers several other things like Seasonal Microbial Activity, Typical Numbers of Soil Organisms in Healthy Ecosystems, Methods for Measuring the Food Web etc. I loved reading this, I’m sure anyone who’s interesting in anything plant/soil related would too.
DIRECT DOWNLOAD: https://planetpermaculture.files.wordpress.com/2015/04/soil-biology.pdf