Christina’s Recent Stories
World Sep 22China, U.S. unveil separate big steps to fight climate change
The two nations are key to success of upcoming climate negotiations in less than six weeks. A joint US-China agreement paved the way for the historic 2015 Paris accord.
Politics Apr 23WATCH: Biden makes case for climate-friendly economic policies at leaders summit
Friday's second and final day of the summit also focused on what Biden says is the need for massive investment for cleaner energy — and what he says is the economic payoff.
Politics Apr 22WATCH: Biden opens global summit with ambitious new U.S. climate pledge
Biden made an ambitious pledge to cut by at least one-half the damaging fumes that America is pumping out. Biden said the world faces “a moment of peril but a moment of opportunity.”…
Science Dec 14Scientists focus on bats for clues to prevent next pandemic
Viruses that emerge from bats are more lethal in humans than those from other species. Scientists are probing the mysteries of bat immune systems and investigating strategies to minimize contact between humans and livestock with bats and other wild animals.
Science Sep 15World isn’t meeting biodiversity goals, U.N. report finds
A new U.N. biodiversity report card highlights the decline over the past 10 years in fragile ecosystems such as coral reefs and tropical forests.
Science Sep 03Once seen as loners, male elephants shown to follow elders
Males were long assumed to be loners because they leave their mother's herd when they reach adolescence. A study published Thursday shows that adolescent males prefer to travel along migration corridors behind older males.
Science Jun 29Worldwide slowdown in fishing unlikely to save rare species
The amount of commercial fishing worldwide has dipped since the start of the coronavirus pandemic, but scientists and conservation experts say it's unclear if the slowdown will help jeopardized species of marine life to recover.
Health May 05COVID-19 tracing apps come with privacy trade-offs
Many governments eager to reopen their societies are starting to bet on smartphone apps to help stanch the coronavirus pandemic.
Science Mar 04Hotter climate increased risk of Australia’s record fires by 30 percent
The researchers used high-resolution computer models to pinpoint how much an altered climate influences the likelihood of specific extreme wildfires, floods, droughts and heatwaves. This growing field of research is called climate change attribution. …
Health Feb 20Can AI flag disease outbreaks faster than humans? Not quite
The first public alert outside China about the novel coronavirus came on Dec. 30 from the automated HealthMap system at Boston Children's Hospital.