geoengineering explained: the benefits and challenges of space reflectors

Space reflectors, a form of solar radiation management [SRM], are sun shields positioned in space in order to reduce the amount of solar energy reaching the earth. Options include placing mirrors around the earth, placing millions of reflectors between the earth and the sun where the gravitational attraction between the two bodies is equal, launching a …

geoengineering explained: the benefits and challenges of ocean fertilization

Ocean fertilization is an untested carbon dioxide sequestration (CDR) technique that involves dissolving nitrates or iron into the water which will encourage an increase in carbon uptake by phytoplankton. After the plankton blooms, it dies and then sinks to the ocean floor where the carbon will be stored as sedimentary rock. BENEFITS CHALLENGES Relatively safe …

geoengineering explained: the benefits and challenges of albedo enhancement

Albedo is the fraction of the sun’s radiation reflected from a surface. It is quantified as the proportion or percentage of solar radiation of all wavelengths reflected by a body or surface to the amount incident upon it. An ideal white body has an albedo of 100% and an ideal black body is 0%. Albedo …

a brief introduction to plant diseases

A disease, as it relates to plants, is a disturbance from plant pathogens or environmental factors that interfere with plant physiology.  When a disease is present, plants will express symptoms. Symptoms are the detectable expression of a disease, pest or environmental factor.  These symptoms are usually the result of complex physiological disturbances.  They result in changes …

precipitation

There have increasing reports of severe weather conditions throughout the world. Certain areas are facing record-breaking water shortages while others are faced with unprecedented flooding. There are a myriad of circumstances that are leading to these conditions. However, the amount of precipitation an area receives is a dominating factor. Precipitation is part of the atmosphere …

soil sealing: what it is and why it’s important

Soil. A living, breathing fundamental component of the world.  Without it, we would not be able to grow food. There would be no trees and plants growing to provide us with the delicious oxygen so necessary to our existence. Our water would not be purified. We would more or less just be screwed. Yet, we …