The Earth's climate has changed throughout history. Just in the last 650,000 years there have been seven cycles of glacial advance and retreat, with the abrupt end of the last ice age about 7,000 years ago marking the beginning of the modern climate era — and of human civilization. Most of these climate changes are attributed to very small variations in Earth’s orbit that change the amount of solar energy our planet receives.
Ninety-seven percent of climate scientists agree that climate-warming trends over the past century are extremely likely due to human activities, and most of the leading scientific organizations worldwide have issued public statements endorsing this position.
.The length of the frost-free season (and the corresponding growing season) has been increasing nationally since the 1980s, with the largest increases occurring in the western United States, affecting ecosystems and agriculture. Across the United States, the growing season is projected to continue to lengthen.
Doug StanglinUSA TODAY1:251:43AD0:02SKIP
Southern California Edison said it re-energized a 16,000-volt power line minutes before the Maria Fire erupted nearby last week and quickly swelled to 14 square miles.
The company said in a statement that it had no information about the actual cause of the fire, which broke out Thursday west of Los Angeles, but noted the site is within its service territory.
SCE said it had re-energized the line 13 minutes before the blaze erupted on a nearby hillside. It added that it would "cooperate with the appropriate investigative agencies if asked to do so."
The Maria Fire in Ventura county, which remains zero contained, threatens about 1,800 homes and other buildings, and prompted evacuation orders for nearly 11,000 people.
A mandatory evacuation order stemming from the Kincade Fire in Northern California expanded from 50,000 to 90,000 residents Saturday night as the state’s largest utility company, Pacific Gas & Electric (PG&E), planned to shut off power for an estimated 2.35 million residents over fears that high winds and low humidity would spread the blaze.
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Extreme events associated with climate change threaten transportation systems and supply chains, potentially disrupting production and distribution networks required for consumers to access goods and services.
Every day, people around the world use data to make decisions. When heading out of town, most of us use weather apps to check the forecast anywhere in the world before packing our bags. However, when we travel to far-flung places, we may find ourselves packing food from home because we don’t know what may be available when we arrive. We have a global, comprehensive, open data set that enables weather forecasting, but not something similar for food and agriculture?
he provisional agendas of the governing and subsidiary bodies were prepared according to Rule 10 of the draft rules of procedure being applied. In this regard, the provisional agendas reflect mandates from previous sessions, including the outcomes of COP 24, CMP 14 and CMA 1.3 as well as SBSTA 50 and SBI 50.