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Topics in Environment

Vanishing Birds

If you were alive in the year 1970, more than one in four birds in the U.S. and Canada has disappeared within your lifetime.

According to research published online in September by the journal Science, wild bird populations in the continental U.S. and Canada have declined by almost 30% since 1970.

Dr. Salim Abdulla: The Heart and Soul of Malaria Research

Dr. Salim Abdulla is a distinguished clinical epidemiologist whose remarkable career has significantly impacted the global fight against malaria and emerging pathogens. With over 20 years of experience in conducting clinical trials and groundbreaking research, he has played a pivotal role in shaping national malaria policies and leading innovations in healthcare.

Throughout his career, Dr. Abdulla has focused on evaluating and introducing critical interventions in the fight against malaria. He conducted extensive research on insecticide-treated bednets (ITNs) and artemisinin-based combination therapies, leading to important advancements in national malaria policy formulation. Notably, he is currently engaged in the evaluation of new malaria vaccines and treatments, with the goal of achieving regulatory licensure.

Malaria by the Numbers

According to the 2022 World Malaria Report, despite disruptions to prevention, diagnostic and treatment services during the pandemic, countries around the world have largely held the line against further setbacks to malaria control.

Good news:
Progress towards malaria elimination is increasing; in 2021, there were 84 malaria endemic countries compared with 108 in 2000.

The Economics of Malaria

In the 2022 World Malaria Report, compiled by the World Health Organization (WHO), the total spend on funding the fight of malaria in 2021 was estimated at USD 3.5 billion. Over that year, the same report states that there were an estimated 247 million cases of malaria and 619,000 malaria deaths globally.

More recently, over the course of the 20th Century, malaria is believed to have claimed between 150–300 million lives. The disease is contracted predominantly in the tropical regions: sub-Saharan Africa, Asia and the Amazon basin. This is due to the prevalence of the Anopheles mosquito that transmits the disease. Poorer regions of Africa bear the vast majority of the burden. In 2021, around 95% of the diagnosed cases and deaths were on the African continent, 80% of which were children under the age of five. The disease is entirely preventable and curable with prompt diagnosis and effective methods of treatment which require sufficient investment and funding.

How Climate Change is Spreading Malaria in Africa

Warming temperatures are chasing animals and plants to new habitats, sometimes with devastating consequences to ecosystems. But there is little evidence regarding how far and how fast the invaders might be moving.

A new study offers a glimpse of the future by looking to the past. Mosquitoes that transmit malaria in sub-Saharan Africa have moved to higher elevations by about 6.5 meters (roughly 21 feet) per year and away from the Equator by 4.7 kilometers (about three miles) per year over the past century, according to the study.

Deforestation 101

Forests cover about 30% of the planet, but deforestation is clearing these essential habitats on a massive scale. What is deforestation? Find out the causes, effects, and solutions to deforestation.

Mike Libby’s Retro-Futuristic Wonders

Mike Libby, a multi-disciplinary artist hailing from the scenic landscapes of Maine, has a portfolio of eclectic sculptures, models, collages, drawings, and installations that radiate meticulous craftsmanship and boundless conceptual curiosity.

Libby’s Insect Lab project, born out of a love for science fiction, natural history, and storytelling, has truly turned heads and captured imaginations. It is a marriage of preserved insects and meticulously crafted mechanical components – a series that blurs the lines between science fiction and science fact.

Dr. Raman Velayudhan: Combating Deadly Mosquitoes

Dr. Raman Velayudhan is a seasoned expert in the public health field and a relentless advocate for combating the global threat of mosquito-borne diseases.

Currently at the helm of the Veterinary Public Health, Vector Control, and Environment unit within the Department of Control of Neglected Tropical Diseases at the World Health Organization (WHO), Dr. Velayudhan’s impact is far-reaching.

The Importance of World Dengue Day

Mosquito-borne Diseases & the Environment

Climate change and human activity are enabling the spread of mosquito-borne diseases, like dengue fever, to new places. Stanford infectious disease experts and disease ecologists discuss what we know and how communities can protect themselves from these changing disease threats.