February 4 is designated as World Cancer Day, and the disease remains one of the world's leading causes of death. Last year, there were close to two million new cases of cancer worldwide and more than 600-thousand people died of the disease. But progress is being made. Cancer mortality rates have been going down for decades, and new technology is making early detection easier. VOA's Kevin Enochs reports.
Researchers and doctors are using incredibly tiny particles — fluorescent nanoparticles — in a quest for new ways to fight cancer. Some nanoparticles, just billionths of a meter across, are engineered to carry special dye that glows when it hits cancer cells. Oregon State University scientists say this makes it easier for surgeons to find and remove tumors. Iryna Matviichuk visited Portland and learned the new procedure is closer to testing in human patients. Anna Rice narrates her report.
One of the important aspects of gauging the damage being done to the world's ecosystems by climate change is knowing the current status of those systems. So a Britain-based charity is about to embark on a seven-week expedition to gauge the health of one of the world's few remaining pristine reefs. VOA's Kevin Enochs reports.