'SELECT SQL_CALC_FOUND_ROWS wp_posts.ID
FROM wp_posts INNER JOIN wp_postmeta ON ( wp_posts.ID = wp_postmeta.post_id )
WHERE 1=1 AND (
wp_posts.ID NOT IN (
SELECT object_id
FROM wp_term_relationships
WHERE term_taxonomy_id IN (47485,47486)
)
) AND (
(
( wp_postmeta.meta_key = \'the_author\' AND wp_postmeta.meta_value = \'1151714\' )
OR
( wp_postmeta.meta_key = \'secondary_author\' AND wp_postmeta.meta_value LIKE \'{519291db04ca92937cb0953c2835f8b1e196ad9d445a6ba9e4bfc4265158c71c}\\"1151714\\"{519291db04ca92937cb0953c2835f8b1e196ad9d445a6ba9e4bfc4265158c71c}\' )
)
) AND wp_posts.post_type = \'post\' AND ((wp_posts.post_status = \'publish\'))
GROUP BY wp_posts.ID
ORDER BY wp_posts.post_date DESC
LIMIT 0, 6'
The nitrogen cycle and health
Nitrogen is necessary for life on earth to continue and the nitrogen cycle is one of the most important nutrient cycles in terrestrial ecosystems. Everything that lives needs nitrogen; it is required for the manufacture of complex molecules such as chlorophyll, proteins and DNA, and also for the production of enzymes necessary for growth, reproduction and other vital functions. However, when present in excess, nitrogen poses risks both to the environment and human health.
April 2, 2012



